Dr. Katja Van Herle

Bursting bladders, hacking coughs, pounding headaches -- what keeps you up at night? The Doctors put your nighttime symptoms to bed. Solve night blindness, night sweats and more. Plus, why fevers skyrocket when the sun goes down.

Vanessa, 37, gets about 10 to 12 hours of sleep every night but is still always tired. Endocrinologist Dr. Katja Van Herle explains the common causes of fatigue and gives her top three tips to boost energy levels.

Hot flashes, fatigue, weight gain; are your hormones to blame? Shed pounds, boost your energy and stimulate your sex life! Plus, are you at risk for breast cancer, osteoporosis or hair loss? Learn what you can do about it today.

Bursting bladders, hacking coughs, pounding headaches -- what keeps you up at night? The Doctors put your nighttime symptoms to bed. Solve night blindness, night sweats and more. Plus, why fevers skyrocket when the sun goes down.

Hot flashes, fatigue, weight gain; are your hormones to blame? Shed pounds, boost your energy and stimulate your sex life! Plus, are you at risk for breast cancer, osteoporosis or hair loss? Learn what you can do about it today.

Beth, 45, is an avid runner who suffered a sudden stress fracture in one of her feet. Podiatrist Dr. Philip Radovic refers Beth to endocrinologist Dr. Katja Van Herle to have her hormone levels evaluated. Beth and Dr. Van Herle join The Doctors to...

Chayenne, 23, has lost 16 pounds in seven weeks using P.I.N.K. Method. But while Chayenne is shedding pounds, is she aware of her overall health? The Doctors and P.I.N.K Method trainer Jenna surprise her with a medical check-up by endocrinologist Dr....