Looked up, niacin can cause capilaries to dialate. Increases blood flow. Increases HDL and lowers LDL. Is manufactured by the body from about 1.5% of surplus tryptophan.
The body uses niacin and tryptophan to manufacture seratonin. Deficiencies in niacin can reduce seratonin levels.
Niacin is also called Vitamin B-3 and there are AA pamphlets about taking "Vitamin B-3" to help bring back energy, reduce stress and elevate mood after coming sober.
Aparently, about 20mg is the min daily for niacin as nicotinic acid. Well, 15-20 depending on age. I see "Optimal Dose" listed as about 100mg. Some people take more and some take extended release versions.
So, Maybe to combat work stress, I'll try taking 5-htp and niacin suppliments for a couple of weeks. I found 50mg 5htp and 100mg niacin (or 250mg slow release niacin).
Though, I guess I could get more sleep, exercise, and generally be more healthy, but you know... why do things the right way when you can pop a pill and blame the pill for failure? :)