Writing a Speech: Editing and Proofreading

We've got a lot of knoweledge by now to know how to write a really good speech. And one of the way to check our knoweledge is to edit the text, to imrove it.

Here is the text by Denis. My corrections are highlighted in red.

Why you should exercise

Good morning, ladies and gentlemen! I'm glad to see you here today. Do you agree with the statement "A healthy mind makes a healthy spirit"? Personally, I believe that it's true. Nowadays the healthy issues are really evident and important as less and less people are born absolutely healthy. But there is one thing that can help you. This thing is exercising. Exercising really helps you to get organized and keep yourself in a healthy physically and mentally. Let’s see why it is so. 

First of all, when you are a lazy person, it's difficult to take the first step, but it is all a matter of committing yourself to something that will provide you a lot of positive feedback. Once you start doing exercises and observing positive results, you actually enjoy it. It takes a lot of efforts and strong will, but it's worth it.  If you start organizing your day, you will no longer be a person stressed-out without time to carry on with all your activities. 

Also, it is obvious that once you exercise you will have a better condition. You will be healthier in a physical way. It is probable that you will lose weight and your muscles will get stronger and stronger. Your body will feel good, full of energy and it will respond immediately to any action you want to do, any activity you have to do with high spirits. 

Moreover, exercising is good because it positively affects you in a mental and psychological way. Doing exercise helps you set specific goals which can be achieved. You become aware of your abilities, accept your weaknesses, and your self-esteem goes up. Any sport helps you not to think about school, friends, problems, among other things. It brings you time to think about yourself and no one else. It helps you keep your mind busy and to avoid dangerous habits like drugs. 

What I want to say to conclude my speech is that doing exercises is very important to any person of any age. When exercise, you start living your life happily. You start planning your activities, your stress level decreases and your body functions better. So do exercise every day and be happy!