Planning to ditch caffeine.

It makes me more impulsive and talkative.

And it gives me hypertension.

The stuff decomposes into uric acid, making kidney stones more likely, or causing gout from crystals forming in lower body capillaries. I've had gout, and who knows, many people have kidney stones and pass them without any sign except a brief period of weird pains.

It interferes with your circadian cycle especially in the early morning with the light-cortisol trigger.