Smoke without fire: What's the truth on e-cigarettes?

I would demand my doctor get me this or maybe nictotine gum for the nicotine needed for my recovery. Your doctor better know which way delivers it better.

Could E-Cigarettes Someday Be Used to Combat Alzheimer's Disease?

Nicotine for these reasons:
1.  Nicotine Holds Promise for Stronger Stroke Recovery
2.  Nicotine Patch Appears To Help Mild Cognitive Loss
3.  A Nicotine Patch a Day Keeps the Cognitive Impairment Away
4. Chronic nicotine restores normal Aβ levels and prevents short-term memory and E-LTP impairment in Aβ rat model of Alzheimer's disease
5. Nicotinic receptors in aging and dementia
6. nicotine and stroke rehab

behind a paywall.
Smoke without fire: What's the truth on e-cigarettes?