Optimize health.

Exercising increases the production of BDNF—brain-derived neurotrophic factor, that causes neurons to grow. As a result, it increases your ability to learn faster, remember more, increase concentration, and improves overall brain function. Physical activity reduces stress which significantly decreases mental performance. A healthy diet and rest time increase your energy level and set up a positive frame of mind.

1. Get fit now.
   Schedule a full physical with your physician. Set up a training plan that best fits your interests and schedule and put it on your calendar. Stretch regularly.

2. Improve your diet.
   Consider visiting a nutritionist to create a customized meal plan. Eat only for the nourishment of your body, not as a result of negative emotions. If you feel bad about something, move first or do another activity to change your emotional state before eating.

3. Get more sleep.
   Train yourself to sleep eight hours a night.

4. Set up a good environment around yourself where people care about health.

5. Make a commitment.
   Hire a personal trainer or tell your family and friends that you are going to get into the best shape of your life. Make it happen.