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Energy levels

Energy levels

Overview

Hot weather combined with a lack of enough fluid in the body to carry on normal body functions can lead to dehydration. It is important to drink plenty of water during physical activity to maintain optimal energy levels and to prevent dehydration.

Review Date 7/15/2026

Updated by: Frank D. Brodkey, MD, FCCM, Associate Professor, Section of Pulmonary and Critical Care Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.