It can be the example of all kinds of sickness
The date at which food/ product shouldn’t be used after the date given on the label
Because they captured energy from the sun through a process called photosynthesis
Okay, this is an interesting one but mainly no, most activity's will so you don't push yourself but if you really wanted to you could go for however long you want as long as you are not doing harm to your body, depending if you are on a fitness program there will be limits.
Answer:
vaccination
Explanation:
This procedure was first developed by the chinese to be protected by something called "Smallpox"