Answer:
because humans are wired to have a schedule and when things change even in a good way it causes a change in routine therefore causing stress
Explanation:
It is B , I know this thanks to the fact I took PE and our teacher teach us about the body !
Answer:
B) Valves closing
Explanation:
A healthy heart makes a lub-dub sound with each beat. This sound comes from the valves shutting on the blood inside the heart. The first sound (the lub) happens when the mitral and tricuspid valves close.
1. Start up a bedtime routine every night at the same time so that your body and mind know when it is almost time to sleep.
2. Take natural supplements like melatonin to give your body the sleep vitamin
3. Make sure your room is completely dark or put on a sleep mask
4. Put warm socks on and warm up your hands
5. Get a cup of chamomile tea with honey
6. If fall else fails ask your doctor for sleep inducing medication.
Persistence
even though he’s injured , he still continues to train
