Vitamin deficiency may be why you’re so tired – a nutritional neuroscientist explains how to kickstart your energy by getting essential nutrients in a well-rounded diet, along with more sleep and exercise

It's not necessarily overwork that is exhausting you. Daniel de la Hoz/Moment via Getty Images

Feeling drained and lethargic is common: A 2022 national survey found that 13.5% of U.S. adults said they felt “very tired” or “exhausted” most days or every day over a three-month period.

Women ages 18 to 44 had the highest rate of fatigue – just over 20%.