Yes, your heart rate will change your energy levels in many different ways. If you are working out you will have a higher heart rate and this will cause you to be tired after you work out.
Because your heart needs to burn energy, the more energy you burn the faster your heart rate
because they need a change in heart rate.
Insomnia, sleeplessness, jitteryness, shaking, headaches, increased heart rate, increased energy levels, hyperness
Does the amplitude of the heart and heart rate always change together
Yes, caffeine increases your heart rate.
Yes. Oxygen is a stimulant - it increases the heart rate.
It will lower the heart rate.
exercise
There is a change in rate of energy transfer as time passes because of the amount of energy in both objects. -probably wrong
Adrenaline is released by the adrenal glands in response to stress, excitement, or danger. It increases heart rate, boosts energy levels, and prepares the body for a "fight or flight" response.
this is not true as your ribs protect your heart so it wont make it move quicker unless you use alot of energy doind that. I doubt it.
Yes!