You need to eat healthy, exercise daily, take brisk walks and do the daily chores of habitual.
The answer is swallow not spit
Answer: No
Explanation:
Since it controls vital functions such as breathing, swallowing, digestion, eye movement and heartbeat, there can be no life without it. But the rest of the brain is obviously capable of some remarkable feats, with one part able to compensate for deficiencies in another.