Ulcerative Colitis

Harvey's not sure if he's on the real thing or a placebo - but either way, he says being in the study has already helped.

Harvey Ottinger, memory loss survivor: "I take extra precautions, like writing down certain things that I have to do.

I feel good, yeah." And if he does forget something, Kay is right by his side to remind him.

Researchers say nicotine does not pose any safety concerns and is only addictive when it's combined with tobacco.

Nicotine patches may not be a practical treatment for long-term use, so drugs are being developed that mimic what it does in the brain.

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ABC7 News TeamDr.

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