Having an itchy nose is considered a good sign, as it means that someone would introduce themselves to you, and you might become closer to that person. In simple words, a stranger will come to you, and you will get to know them. It is also believed that an itchy nose sometimes indicates that something will happen in your life. It can be a good thing or a bad thing.
Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error).
Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.
Genetic drift can have major effects when a population is sharply reduced in size by a natural disaster (bottleneck effect) or when a small group splits off from the main population to found a colony (founder effect).
Answer:
Well, you need to stay the weight that is the healthiest and you need to make sure you have no illnesses that can kill you, and you need to eat the right way b/c it can help your eyes hair and ect.