Here's my suggestion.
both men and women become more concerned with their appearance. Some people think that the importance of beauty has a good impact on personal character and development. As far as I am concerned, paying more attention to one's appearance only has severe effects on our health and wisdom for several reasons.To me, 'Reasons and examples will be outlined below' sentence is too direct. So, I'd say something like for several reasons: 1, 2, and 3.
Initially, most individuals highlight the importance of appearance rather than the development of themselves. The time they put more effort on improving academic skills is much less than that of cosmetics. When I go shopping malls, I commonly see people head first to clothing stores instead of book stores. Even in my high school, my peers often encouraged me to do heavy make-up and overlooked the exam preparation.while they do not much care
Care much.
are generating
are generated
Nevertheless, concern over the appearance also demonstrates good impact on personal character and performance. As we wear comfortable clothes, do make up gently and even have some cosmetic surgery, we increase our self-esteem and become more confidence with what we are doing. That is specially true with business in which 90 percent of business deal is come from clothing. The evidence to support this claim is prevalent, especially of the clothing business deal. Worker's performance increases if they wear comfortable and suitable outfits.
In conclusion, investment on our appearance should not outweigh the time we spend time studying; in fact, the time should be balanced properly. The beauty is not ever-lasting, but at the same time, we should increase the awareness of health lifestyle and knowledge. At last, I am certain we will be able to witness the true benefit of changing our look.
I think you have good ideas! But there are just some grammar issues that you should focus on.