Why does my heart race when I get scared?

Answers

Answer 1

Answer:

fat and sugar make our bronchi open wider, causing heart beat and breathing rate to increase while adrenaline is pumping through our blood. this causes our heart to beat faster when we're scared.

Explanation:

hope this helps :3

Answer 2

Answer:

Your heart rate increase to pump more blood to your muscles and brain. Your lungs take in air faster to supply your body with oxygen. The pupil in your eyes get larger to see better.


Related Questions

According to the CDC what are health determinants?

A. Factors that contribute to a persons current state of health

B. The aspects of a persons physical environment

C. Health factors that can be controlled

D. Health factors that cannot be controlled

Answers

Answer:

Hey there!

Health determinants are factors that contribute to a person's current state of health.

Let me know if this helps :)

If you are aerobically fit, what health risks are decreased​

Answers

[tex] \large{ \boxed{ \bf{ \color{gold}{Ya, \: You \: are \: absolutely \: true!!}}}}[/tex]

Regardless of age, weight or athletic ability, aerobic exercise is good for you.

During aerobic activity, you repeatedly move large muscles in your arms, legs and hips. You'll notice your body's responses quickly.You'll breathe faster and more deeply. This maximizes the amount of oxygen in your blood. Your heart will beat faster, which increases blood flow to your muscles and back to your lungs.Your small blood vessels (capillaries) will widen to deliver more oxygen to your muscles and carry away waste products, such as carbon dioxide and lactic acid.

Advantages on Aerobics:-It helps reducing weight.Increases our stamina, fitness and health. Reduces health risk.Strengthen your heart.Clear your arteries. Live longer.

And, Most importantly..It boots up our mind.

Answer: Reduce your health risks

Aerobic exercise reduces the risk of many conditions, including obesity, heart disease, high blood pressure, type 2 diabetes, metabolic syndrome, stroke and certain types of cancer. Weight-bearing aerobic exercises, such as walking, help decrease the risk of osteoporosis.

Explanation:

1
Select the correct answer
36-year old Donna has been diagnosed with liver cancer. Her doctor explains the various treatment options Donna does not want to go in for
surgery. What should her doctor do next?
O A
OB
Tell her she has to have a surgery.
Tell Donna's family they must convince Donna to go in for surgery.
Tell her that she is making the wrong decision and it is not fair to her family,
Explain the pros and cons of her decision and allow her to decide.
OC
OD
Reset
Next

Answers

Answer:

Explain the pros and cons of her decision and allow her to decide.

Answer:

Most likely D

Explanatian

Seems like the most logical answer, the other ones seem unrealistic

The fact that the top causes of death in the United States are due to chronic illness while people in the developing world are continually affected by the threat of acute illnesses indicates that

Answers

Answer:

illness is impacted by social factors.

Explanation:

Social factors have an important role to play in determining health outcomes for example education level, exposure to violence, difficulties in daily life, local health services, and toxic environment which can lead to premature death. Health equity involves removing barriers to health, such as unequal treatment and poverty, and the effects of those barriers. These barriers involve a lack of quality education, safe working conditions, good housing, reasonable pay, and affordable healthcare and all these facilities differentiate a developing nation from the developed ones.

Analyze physical activities from which benefits can be derived. Name and describe three strength training exercises that can be performed by a person that works out at least 3 times a week doing a variety of exercises at the gym and then discuss at least two health benefits of strength training.

Answers

Answer:

planks : they're a very good way to exercise our upper body, there are different types of planks that can be useful to the human body. they help in building the muscles in our biceps and triceps

squats : they help in strengthening the muscles in our thighs and below the knees. they're a very efficient way of exercising our lower body.

crunches: Partial crunches can help strengthen your back and stomach muscles. they help your back muscles.

Explanation:

avoid doing them if you feel difficulty

Physical activity like walking, wheeling, indoor and outdoor sports like swimming, or active recreation benefits health.

Physical activities that are helping to strengthen muscles and build bone structure include swimming and playing basketball.

It s also helps in  maintain a healthy weight by activities such as aerobic dancing, jumping rope, and cycling, and more.

Three strength training exercises that can be performed by a person are:

Squats: strengthening the muscles of thighs and calf muscles. Crunches: these can help strengthen the backbone, back muscles, and stomach musclesPlanks: help building strength in the upper body and help in building the muscles in our biceps and triceps

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Approximately 70% of a person's body weight is made up of water. If a body weighs 50 kilograms, what would be the approximate weight of the water in his body? (A): 20 kilograms (B): 35 kilograms (C): 42 kilograms (D): 50 kilograms

Answers

Answer:

Hey there!

If 70% of a person's body weight is water, and the person weighs 50 kilograms, the weight of water would be 0.7(50), or 35 kilograms.

Let me know if this helps :)

Jacinta has been a victim of discrimination in her neighborhood. Which common outcome is most likely to be seen in Jacinta?
A.
low self-esteem
B.
rebellious behavior
C.
the ability to adapt to changes
D.
a high tolerance level

Answers

Answer:

A

Explanation:

low self- esteem

Answer: Answer “B”, aka “low self-esteem.

Explanation: The answer to this question is B because Jacinta, or anyone for that matter would most not likely gain from discrimination in their neighborhood, regarding them. Discrimination would definitely lead to lowering someone’s self-esteem.

Hope this helps!!

-︎︎ ฅ^•ﻌ•^ฅ

Do I deserve life..? T-T

Answers

Of course you do. Why would you think otherwise?

By the way, this is not an academic question.

Yes you do deserve a life.

what is the Perimeter of a circle whose radius is 14cm​

Answers

Answer:

87.96

Explanation:

perimeter is the same as circumference

C=2 π r

radius = 14

C=2 x π x 14 =

87.96

What distinguishes push-ups from other chest exercises such as the bench press and dumbbell flies?
A.
The bench press also exercises the legs.
B.
Push-ups are a variable resistance exercise.
C.
Push-ups do not require any weights or machines.
D.
Push-ups are not actually chest exercises.



Please select the best answer from the choices provided.


A
B
C
DWhat distinguishes push-ups from other chest exercises such as the bench press and dumbbell flies?
A.
The bench press also exercises the legs.
B.
Push-ups are a variable resistance exercise.
C.
Push-ups do not require any weights or machines.
D.
Push-ups are not actually chest exercises.



Please select the best answer from the choices provided.


A
B
C
D

Answers

Answer:Its C!

Explanation:

Push - ups do not require any weights or machines to practice whereas, bench press and flies are doing with a pair of weights or other machines.

What is push - ups ?

Push - ups is kind of workout to strengthen. It is done by pushing our body on the support of hand in floor moves to the ground and then rising up on the same stretch without bending the body. It helps to expand chest muscles and helps to  widen chest.

Bench press and   are other kinds of  chest  workouts using weights or machines. Bench press is done by  lying on a bench with equal weights on each hands. Rising up them and down to the  chest level.

Flies is a modified bench press in which the movement of hands with the weights is a bit different than that in bench press. These two are only done with weights unlike Push - ups Thus, option C is correct.

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What is the chain of infection?
A
a set of conditions that allow diseases to occur and spread
B.
an accumulation of pathogens in a reservoir
C.
the continuous cycle of diseases becoming more advanced
D.
the ways to stop pathogens from spreading
Reset
Next

Answers

Answer:

i think A

let me know if right

Answer:

I cant comment but chantelle 32506 is right

Explanation:

When someone loses a baby tooth, how would they know if the whole tooth came out?

Answers

When a baby tooth falls out, the big tooth is usually underneath the gums, sometimes you can see a little bit of the bottom of the tooth after the baby tooth comes out. Sometimes the tooth will have a hook on it, other times it comes clean out. You can tell its fully out when the gums have a small hole where the tooth use to be, if part of the tooth breaks off, the adult tooth will most likely push the tooth out once it comes in.

That's my best answer for you, you might be able to shorten it a bit if you like. Hope it helps! :)

Answer: When your baby tooth falls out, you should be able to either see a small hole from where your baby tooth was previously, or you can already see the bottom of the adult tooth. Why would you already see the bottom of the adult tooth when your baby tooth falls out? Well, the adult tooth would have been already growing out of your gum, pushing the baby tooth out, which causes some pain.

Hope this helped! <3

The decrease in the normal haemoglobin or quantity of red blood cells is as a result of --------? (A) Accident (B) Haemoglobin bleeding (C) Anaemia (D) Sickle-cell disease

Answers

Answer:

C- Anaemia

Explanation:

When the hemoglobin level is low, the patient has anaemia.

Answer:C

Explanation: lack of red bloods leads to lack of hemoglobin

The Department of Health finds that the cases of new meningitis infections in NYC for 2017 are at the same level as 2016 (average). The epidemiologist states meningitis to be at a(n) ______ level. Pandemic Endemic Epidemic Systemic

Answers

Answer:

he Department of Health finds that the cases of new meningitis infections in NYC for 2017 are at the same level as 2016 (average). The epidemiologist states meningitis to be at a(n) endemic level.  

Explanation:

Endemic is a term used to indicate that the cases of the disease had remained constant in an area over some time. If the number of people affected by meningitis in New York had increased from 2016 to 2017, the term used would be an epidemic.  If a disease spreads globally, it is called a pandemic.

Can you get hiv from animals such as cows and chickens ?

Answers

Answer:

from what i have seen the answer would be no

Explanation:

different animals have different forms of HIV and since they're quite different from humans in terms of genetic makeup it can be quite difficult to transmit the disease to a humans without the immune system getting in the way. but with that being said we must remember that HIV was first introduced to the humans body by diseased monkeys that were most probably poorly hunted or prepared for consumption.

Which kingdom of organisms is being described here?

1. Cannot move

2. Makes it's own food

3. Made of more than one cell

4. Cells have a nucleus

Answers

Answer:

Kingdom Plantae

Explanation:

plants cant move

they make their own food

they are made of many cells

their cells have a nucleus

Which nurse is reassuring the patient using nonverbal means?
A.
Nancy explains the surgical procedure to her patient.
B.
Luke shows his understanding by nodding at what the client says.
Drake answers his client's questions patiently.
C.
D.
Steve writes down instructions for the patient to follow.
Reset
Next

Answers

Answer:

B

Explanation:

Nodding is a form of nonverbal communication used to reassure someone.

Answer: B) Luke shows his understanding by nodding a at what the client says

Explanation:

I just did a test with this question and I got it right

Hope this helps! :)

During an independent emergency ascent, you should stop periodically and attempt to inhale through your regulator because:__________.
a) Doing so reduces the risk of decompression sickness.
b) Doing so reduces the risk of lung-overpressure injuries.
c) The decreasing pressure may allow your regulator to function, even if it could not do so at depth.
d) The air in your cylinder will expand on ascent, allowing you to breathe.

Answers

Answer:

c) The decreasing pressure may allow your regulator to function, even if it could not do so at depth.

Explanation:

During an independent emergency ascent, you should stop periodically and attempt to inhale through your regulator because:

c) The decreasing pressure may allow your regulator to function, even if it could not do so at depth.

During an independent emergency ascent, you should stop periodically and attempt to inhale through your regulator because c) The decreasing pressure may allow your regulator to function, even if it could not do so at depth.

whilst making an emergency ascent A scuba diver should?

Observe the techniques you discovered in training: keep your regulator for your mouth always; occasionally air expands and offers you one more short breath. Exhale slowly and constantly all the way to the floor, and keep your ascent gradual.

What is a controlled emergency ascent?

Controlled emergency swimming ascent (CESA) is an emergency swimming ascent that remains under control and which is performed at a safe ascent rate, with continuous exhalation at a rate unlikely to cause injury to the diver by lung overexpansion.

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A child should participate in strengthening activities at least days per week.

Answers

at least 3 days per week

Answer:

Yes

Explanation:

Because a child needs to stay fit and healthy

While driving, central vision is used to:
a. Provide detail of objects and driving conditions.
b. Position the vehicle in the proper lane.
c. Gather peripheral information.
d. Maintain a constant speed.

Answers

Answer:

A.

Explanation:

Provides detail of objects and driving conditions.

How do you get rid of acne and bacne..? I've tried daily washes for weeks to months now and my bacne just gets worse. My acne stays the exact same!

Answers

Answer:

Try Curology for acne. Not sure what to do for bacne, I have the same problem.

Answer:

Well, everybody's system is different and there are, many methods to get rid of it.

Explanation:

It's sometimes just hormonal imbalance you should, talk to your doctor maybe, they can prescribe you pills? Another, problem is maybe your diet try eating more vegetables with water and this is a must, DRINK A LOT OF WATER!

I really recommend to use cerave cleanser the gentle kind it's very easy on your skin and shows results fast.

1. Cleanser

2. Toner

3. Exfoliater ( cetaphil )

4. Eye cream

5. Lotion ( preferably cerave lotion )

HIV is a disease that reduces T cell production in the immune system. Would HIV increase or decrease a person's chance of developing cancer cells? a. The person's chances would increase because T cells can destroy cancer cells. b. The person's chances would increase because T cells prevent cancer cell division. c. The person's chances would decrease because T cells create lymph, which reduces cancer cell growth. d. The person's chances would decrease because T cells are especially susceptible to becoming cancerous.

Answers

The correct answer is A. The person's chances would increase because T cells can destroy cancer cells.

Explanation:

One of the main functions of the T cells as part of the immune system is to recognize infected or abnormal cells including cancer cells and destroy these. This means, an appropriate function and production of T cell help to the prevention of cancer. This does not occur in HIV patients as HIV affects the immune system including T cells, due to this, the production of T cells is low or there is not appropriate. In this context, HIV patients are more vulnerable to cancer of have more chances to develop this disease.

Answer: A. The person's chances would increase because T cells can destroy cancer cells.

Explanation:

FOR 40 POINTS!!!!

What is the function of a vascular spasm?

A) it plugs the wound area prior to the adherence of platelets.

B) it constricts the wound area prior to fibrin formation

C) it plugs the wound area after the adherence of platelets

D) it constricts the wound area after fibrin formation

Answers

Answer:

B. It constricts the wound area prior to fibrin formation.

Explanation:

Before the formation of fibrin, vascular spasm constricts the wound area.

Vascular spasm

It is the narrowing of the arteries resulting due to persistent contraction of the blood vessels, also called vasoconstriction.

This can diminish the flow of blood, this can influence any part of the body.

Vascular spasm or vasoconstriction is one of the steps of hemostasis.

It is a brief reflexive contraction at the time of hemostasis, which makes a decrease in the flow of blood to the region.

This takes place just prior to the formation of platelet plug by fibrin.

The formation of platelet plug takes place directly after the rupturing of blood vessel takes place.

After some minutes, the formation of platelet plug takes place completely by fibrin.

Thus, the correct answer is option B.

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Mr. Pochettino created a secret ingredient for a breath mint that he thinks will “cure” the bad breath people get from eating fish tacos at the Taco Tent. He asked 100 customers with a history of bad breath to try his new breath mint. He had fifty customers (Group A) eat a breath mint after they finished eating a fish taco. The other fifty (Group B) also received a breath mint after they finished the taco, however, it was just a regular breath mint and did not have the secret ingredient. Both groups were told that they were getting the breath mint that would cure their bad breath. Two hours after eating the fish tacos, thirty customers in Group A and ten customers in Group B reported having better breath than they normally had after eating fish tacos. What did Mr. Pochettino measure in his experiment? Identify the independent variable, dependent variable, and what Mr. Pochettino's conclusion should be.

Answers

Answer:

Explanation:

The group that is recieving the 'intervention' is the experimental group. & The group of people that are not receiving the intervention,they are only for comparison purpose with the experimental group is the control group.

The outcome of the experiment is the dependent variable.

The rest of the variables are independent variables.

1)The people that are not receiving the new breath mint ,are the control group. Group B is the control group.

2)All the customer (both Group A & B ) had bad breath at the start of study i.e., before intervention.

So, Bad breath is an independent variable.

Secondly, all the person are eating krabby patties.

So, ingestion of krabby patties is also an independent variable.

3)The outcome of the study is dependent variable.

So bad breath get cured/or not is the dependent variable.

4)Group A is receiving the new breath mint.So Group A is the experimental group.

Answer:

The independent variable is are all of the variables left after the dependent variable is recognized.  The dependent variable is the result of the expierement.  Independent variables: Stinky breath and ingestion of the tacos.  Dependent variables: The outcome of the expierement.  The outcome is basically rather or not the stinky breath was cured or not.  Mr. Pochettino's conclusion should be that the secret ingredient, does indeed, definately have a positive effect on curing stinky breath.

Explanation:

The group of people that are collecting the 'intervention' is known as the experimental group of people.  The group that is not collecting the 'intervention', well, they are simply just for comparison purposes along side the experimental group.  The experimental group of people  is also known as the group that is in charge.  The dependent variable is whatever the outcome of the experiment is and the independent variables are all of the variables that are left.  Group B is the group that is in charge.  They are the people that will not receive the new breath mint.  Both, group A and group B, had stinky breaths at the start of this study.  This means before intervention.  First, with that being said, bad breath is then known as an independent variable.  Second, all of the people are eating fish tacos.  That then makes ingestion of the tacos an independent variable as well.  With all of this now recognized, the outcome of the study is known as the dependent variable.  Basically, the dependent variable is if the stinky breath is cured or not cured.  Finally, group A is receiving the new breath mint making them now the experimental group.

deepta and abhinav having weight 450N and 350N are playing seesaw. If deepta sits at a distance of 2cm from fulcrum, how far should abhinav be seated in order to balance deepta?​

Answers

Answer:

Abhinav be seated at "2.57 cm" far. The further explanation is given below.

Explanation:

The given values are:

Deepta's weight,

= 450 N

Abhinav's weight,

= 350 N

Deepta's distance from fulcrum,

= 2cm

i.e.,

= 0.02 m

Let Abhinav's distance be "x".

As we know,

⇒  [tex]Work \ done \ by \ Deepta = Work \ done \ by \ Abhinav[/tex]

⇒  [tex]Deepta's \ weight\times Deepta's \ distance = Abhinav's \\ weight\times Abhinav's \ distance[/tex]

⇒  [tex]450\times 0.02=350\times x[/tex]

⇒  [tex]9=350\times x[/tex]

⇒  [tex]\frac{9}{350} = x[/tex]

⇒  [tex]x=0.025 \ m[/tex]

i.e.,

⇒  [tex]2.57 \ cm[/tex]



It is necessary to focus on the ___
rather than the differences in order to understand and respect other cultures,
Reset
Next

Answers

Answer:

similarities

Explanation:

focus on the positive and what is similar instead of the differences which can be more negative.

Based on the diagram above, which of the following correctly describes the function and components of layer A?

A) movement; villi, blood vessels, lymphatic vessels

B) movement; muscles and connective tissue

C) absorption; villi, blood vessels, lymphatic vessels

D) absorption; muscle and connective tissue

Answers

Answer:

C) absorption; villi, blood vessels, lymphatic vessels

Explanation:

The villi are many small folds in the intestine (0.5 to 1.6 mm in length) that increase the surface area and thus maximize the absorption of foods. The villi transport nutrients from food to the capillaries and lymphatic vessels which are found close to its surface. The blood vessels support the tissues of the small intestine and they required to transport the nutrients to the body. Moreover, the lymphatic vessels are involved in nutrient absorption by returning the interstitial fluid to the bloodstream.

\Critical practices to control the amount of solid waste include __________.
A.
reduce, reuse, recycle, compost
B.
reduce, remove, recycle, compact
C.
reduce, sort, recycle, compact
D.
none of the above

Answers

Answer:

a

Explanation:

Critical practices to control the amount of solid waste include reduce, reuse, recycle, compost. Therefore, option (A) is correct.

What are 3R's ?

The 3R Initiative strives to spread awareness of the "3Rs" (reduce, reuse, and recycle) on a worldwide scale in order to create a society that effectively uses resources and materials. It was approved as a new G8 project during the G8 Sea Island Summit in June 2004. It was also decided to have a ministerial conference in Japan in the spring of 2005 to officially launch the 3R Initiative.

By keeping usable items out of landfills, trash reduction, recycling, and reuse help reduce landfill space. The production or collection of raw materials and the manufacturing of the product need less energy and natural resources.

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Explain the meaning of planning​

Answers

Answer:

well, i may not be a genuis but here's my definition on planning. to me planning is something you do to organize certain things such as events or certain things you need to do. planning can help prevent stress and that way you won't forget things snce we tend to remember more if we write things down.

Which of these is NOT a biological contaminant?

Answers

So where are the options?

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