Do you have a picture that goes with this question?
Answer:
Some longer-term changes begin as adjustments to compensate for drug-induced increases in neurotransmitter signaling intensity. For example, the brain responds to repeated drug-induced massive dopamine surges in part by reducing its complement of dopamine receptors.
Explanation:
A fitness professional should consider many facts. Health plays a big role in certain physical activity as some people are very limited due to their damaged health, especially if it’s cardiovascular. Sleeping pattern is also important. Let’s not forget balanced meals and previous physical activity if there was any. A person who rarely exercises can’t start their exercising routine in an intensive manner. The conclusion is, consider all the factors.
True the heart like any muscle strengthens when you use it