20 - 29 Years Old 30 - 39 Years Old 40 - 49 Years Old 50+ Years Old

Energy levels Muscle mass and strength Sex drive and performance Mental focus and clarity Weight loss

Yes No

Completely drained – need caffeine or a nap Noticeably lower – afternoon slump hits hard Slightly tired – still functional but slower Same energy – no afternoon crash

Over a year ago In the past year In the past few months Not sure

Higher energy that lasts all day Increased muscle mass and strength Better sex drive and performance Improved mental clarity and focus All of the above

I barely exercise anymore Light exercise occasionally Moderate exercise regularly Heavy exercise / very active

Lean and muscular Average build Soft with some muscle Overweight / out of shape

Less than 5 hours 5–6 hours 7–8 hours More than 8 hours

Yes No Not sure

Daily – most meals include processed foods Several times a week Occasionally – mostly whole foods Rarely – I avoid processed foods