ABC News' Dr. Darien Sutton shares tips to boost your defenses and stay healthy as cold and flu season approaches. SUBSCRIBE to GMA's YouTube page: https://bit.ly/2Zq0dU5 VISIT the GMA3 homepage: https://bit.ly/3kNlst8 FOLLOW GMA3: Facebook: https://www.facebook.com/abcgma3 X: https://x.com/abcgma3 Instagram: https://instagram.com/abcgma3