Exercise Trains Your Immune Cells to Stay Strong as You Age

Exercise trains your immune system to respond faster and recover more efficiently, helping you stay energized and more resistant to illness Years of consistent moderate training reshape how your immune cells produce and manage energy, keeping them youthful and resilient as you age Active adults maintain steadier inflammation and bounce back quicker from stress, reducing fatigue, soreness, and lingering symptoms after illness Daily walking with short, high-quality strength sessions builds immune stability without overwhelming your system or spiking stress hormones Training your immune cells through repetition — not intensity — gives you lasting protection, better recovery, and steadier energy throughout your life