The human body is very flexible to adapt to various kinds of changes that are made or occur in the body or environment.
The human body generally adapts the stress of an exercise of similar nature with enhanced fitness if the stress is more than the normal or minimum threshold integrity. For example, weight lifters work on their shoulders and arms to improve strength and muscle hypertrophy.
Beach, this should not be for any school stuff that's wrong if it is because some people struggle with stuff like this but if it was only supposed to be some kind of lesson or whatever then i'm sorry.
True, vaccines are small doses of the virus in which the body will fight off and learn from it. your body next time will know how to fight the disease, making you immune.
