The answer is:
Age
This is because if your young your organs are not as developed. When your older your body handles more because it is developed fully.
1, 2& 4th bullet I think is correct
Answer:
The Role are free radicals believed to play in AD are explained below in details.
Explanation:
There is a growing indication that free radical-produced oxidative loss may perform a function in the pathogenesis of Alzheimer's disease. Free radicals are reactive oxygen composites that may strike and break proteins, lipids, and DNA. ... Antioxidants such as vitamin E display encouragement that they may benefit in managing the disease.