Eliminate (or restrict) the amount of caffeine in your diet.A few years ago I found out that I have a physical condition that is aggravated and triggered by caffeine. Whereas many principles of my diet are up to me to see how I react / feel, the doctor was adamant about caffeine (and alcohol, incidentally). I am very grateful for revelation and a health code that has minimized the impacts of the condition and which has made it easy to follow my doctor's direction.
Elder Marion D. Hanks:
"The Word of Wisdom teaches us a great principle and makes a promise. The principle is that everything good God has provided for us we should use with thanksgiving and good judgment, with prudence and not to excess. Everything that is not good for us we should leave alone. The promise is that if we obey this principle we will be better off in every way: in health, in knowledge and wisdom, and in wonderful spiritual blessings.
"We know now through evidence that cannot be questioned, that alcohol and tobacco and caffeine are not good for the body. We know that they are destructive and harmful. We know much about the importance of the proper food to eat and about moderation in diet. These facts were not available to Joseph Smith except through revelation received from our Heavenly Father. That is how he received them, and we need to remember that, when we thank the Lord for wonderful blessings we have received through prophets from God."