They may also suggest lifestyle measures such as exercise and self - help groups. (nhs.uk)
However, it is unknown whether smoking directly leads to weight loss or whether low weight in smokers is caused by some other lifestyle measure adapted by smokers. (sciencedaily.com)
It does involve the adrenal glands, and it can definitely involve symptoms, and you can fix it by lifestyle measures — thankfully, that is all perfectly true. (drchristianson.com)