well

How to Protect Yourself From Mosquitoes and Ticks

The C.D.C. says tickborne diseases like Lyme are rising steadily in the Northeast, which has more trees now than a century ago.

From a Pediatrician, Lessons for Dads-to-Be

Fathers react to a vivid childbirth video in Dr. Craig Garfield’s class for expectant fathers at Northwestern.

Is There an Optimal Diet for Humans?

Members of the Hadza tribe in Tanzania on a zebra hunt.

Hearing Loss Threatens Mind, Life and Limb

How to Know When a Child’s Flu Turns Serious

Ethan Lasorsa, 12, of Macungie, Pa., was treated for flu and an ear infection in the pediatric ward at Lehigh Valley Hospital-Cedar Crest in Allentown, Pa.

A Perplexing Marijuana Side Effect Relieved by Hot Showers

Thomas Hodorowski quit smoking marijuana after learning his years-long bouts of nausea and vomiting were caused by his habit.

When the Lung Cancer Patient Climbs Mountains

Andy Lindsay, a lung cancer patient, was among the climbers and porters heading up Mera Glacier in Nepal to Mera High Camp on a three-week trek this fall.

What Surfing With My Niece Taught Me About Life

The author, Steven Petrow, surfing in Hawaii.

The Ascension of Cauliflower

How to Keep Children Safe From Abuse at the Doctor’s Office

Madeline Johnson, right, and her sister, Kara, left, with their parents, Brad and Kelly, at the sentencing hearing of Dr. Lawrence G. Nassar.

How Karate Helped an Aging Expert Age Better

Dr. Kirk Daffner practices his karate moves as his mentor, George Gonis, looks on.

After a Cancer Diagnosis, Playing the Odds

The author, Katie Palay, with her husband and child.

From Brooklyn to India, in Search of the Secret to Parenthood

The author, Diksha Basu, and her husband, Mikey McCleary, with their daughter, Sky, at 6 weeks old in their apartment in Williamsburg, Brooklyn.

Blurred Vision, Burning Eyes: This Is a Lasik Success?

Justin Puglisi undergoing Lasik eye surgery in Garden City, N.Y. The 15-minute procedure was performed 700,000 times last year.

Can Kindness Be Taught?

Prekindergarten students at P.S. 212 in Jackson Heights, Queens, observe their “belly buddies” — stuffed animals placed on their stomachs — as they rise and fall with their breath. The lesson is part of the Kindness Curriculum.

Debunking Myths About Estrangement

Nikolaus Maack of Ottawa started distancing himself from his family a decade ago. Estrangement is neither rare, sudden, nor easy to explain, researchers say.