@Germlat,
Indeed Germ. After some 15-20 years of so-so existence my Better Half, who as you must already know is much smarter than I, suggested massive daily doses of COQ10 and B vits; whereupon I now feel wonderful all day every day, engaging in life with renewed verve
Were the pills really responsible? No way to know but you can bet I'll continue takin' 'em