Because they are healthier
because their eyes are healthier and there are no problems like cataracts or astigmatisms and such (look up eyes at www.howstuffworks.com)
Vegans are not necessarily better than other people. Some are healthier than other people, and some are not.
no, fats are different there are many different kinds some are healthier than others there is saturated, unsaturated and polyunsaturated unsaturated fats are healthier than saturated fats
To find out what foods are healthier there are a few things to look at. First you would see what vitamins are in the item. Calorie intake is a second thing to look at. Mostly organic foods are healthier than processed foods.
Some people need more sleep than others because of their age and what they do.
because some people's are bigger than others
Usually a higher SPF sunblock is better and healthier, for example SPF30 is better and more protective than SPF8. At a certain point there is no more benefit to higher numbers, so it's not better or healthier to get a higher number, some people say this limit is SPF30 and others say SPF50.
'Makes meals healthier' Healthier than what?
Yes they were healthier because they ate poo
Depends.
people are healthier now because are immune systems are stronger and can fight off more diseases than before.