Observations from a ex-neurosurgeon:
- Diet was the most important (food and liquids)
- Low salt
- Mostly plant-based (veggies, fruit, whole grains, beans)
- Not too much animal foods
- They'd do things that make them sweat (exercise, sauna)
- Not drinking much, not smoking
- Good social support
- Sleep 8 hours a day
- Not stressed, or they found a way to release the stress (be present, be mindful)