Andrew Huberman· PhD
one of those three individuals chews an excessive amount of Nicorette. Used to be a smoker and I asked him why and he said because, in his estimation, it's protective against Parkinson's and Alzheimer's, or at least the nicotinic acetylcholine augmentation of nicotine, 'cause nicotine is an acetylcholine receptor obviously, is known to create a state of focus and neural enhancement.