Exercise is bodily activity that helps for (DELETE "FOR.") the development and maintenance of physical fitness and overall health. It strengthens (THE) musculoskeletal and cardiovascular system(S); (NEW SENTENCE. "IT...") even (HELPS) the soci(O)psychological aspects of a person(,) and it hone(S) athletic skills. Exercise maximizes lung capacity, helps boosts immune system and helps prevent health problems such as cardiovascular diseases, diabetes and obesity. It also improves mental health and performance and may prevent or alleviate depression. furthermore, exercise affects people's moods. After one hour of running or strenuous exercising, most people feel physically exhausted but ment(A)lly relaxed, if not slightly euphoric. Physical exercise is known to stimulate the synthesis of endorphins, which might explain this feeling of well-being and fills the role of a mild antidepressant. Exercise helps develop the hippocampus-dependent spatial learning, leading to improvement of cognitive functioning and boosts synaptic plasticity and neuronal growth. Moreover, it serves as a neuroprotectant in many neuromuscular and neurodegenerative diseases such as dementia. Exercise has an effect on the catabolism of the body, resulting to improved endurance, muscular strength, bone density and toughness of connected tissues. Brain chemicals such as dopamine, norephinephrine, serotonin and glutamate that help cognitive functions are increased(,) when regular exercise is maintained. Performing exercises with family, friends and other people could lead to emtional and social fufilment. With all this (THESE) benefits, we can really say that exercise is good for our mind, body and soul.
USE SEPARATE PARAGRAPHS TO DISTINGUISH BETWEEN PHYSICAL AND PSYCHOSOCIAL (SOCIOPSYCHOLOGICAL) EFFECTS.
It seems as if you have not done any proofreading of your own, but are depending on us to do it for you. Do your own proofreading before asking us to help.
In the future, if nobody is available to proofread your work, you can do this yourself. After writing your material, put it aside for a day — at least several hours. (This breaks mental sets you might have that keep you from noticing problems.) Then read it aloud as if you were reading someone else's work. (Reading aloud slows down your reading, so you are less likely to skip over problems.)
If your reading goes smoothly, that is fine. However, wherever you "stumble" in your reading, other persons are likely to have a problem in reading your material. Those "stumbles" indicate areas that need revising.
Once you have made your revisions, repeat the process above. Good papers often require many drafts.
I hope this helps. Thanks for asking.