Note: most of this is purely anecdotal / may or may not be backed up by rigorous scientific research, but a lot of it comes down through ancient wisdom teaching

Note: most of this is purely anecdotal / may or may not be backed up by rigorous scientific research, but a lot of it comes down through ancient wisdom teachings / tips from eastern medicine (Indian / Chinese) so please don't put me on the cross if there is no medical study to back up what I am listing here :) * Enough Sleep (at least 6 hours) * Staying in a single location / time zone (hard for me, as I'm travelling every week) * Eating healthy / balanced diet * Eating at normal times (avoid late night eating) * Celibacy * Avoiding cold water (sticking to room temperature, and if sick only sipping hot water / teas) * Reducing caffeine intake (coffee) * Light yoga practice * Staying warm in cold environments * Get a blood check up and see if any deficiencies (look out for Vit D, Vit B, Zinc, high cholesterol, BP, fatty liver, Thyroid activity, etc.. Vit C supplementation also helps) * Reduce / eliminate mental / emotional stress * Eat organic / local * Reduce meat consumption