(HealthDay News) -- Lactose intolerance means the body can't properly digest lactose, a sugar naturally found in milk and other dairy products.

(HealthDay News) -- Kids may be inclined to opt for junk food over fresh fruit.

SUNDAY, Nov. 11 (HealthDay News) -- People who earn $35,000 or less a year may have better outcomes after knee replacement surgery than those who make more money, U.S. researchers say.

SATURDAY, Nov. 10 (HealthDay News) -- People with rheumatoid arthritis have higher-than-normal rates of depression, which could increase their risk of death, according to a new study.

SATURDAY, Nov. 10 (HealthDay News) -- Overweight and obese women are at increased risk for rheumatoid arthritis, a new study suggests.

MONDAY, Nov. 12 (HealthDay News) -- A tick-borne disease that causes symptoms similar to malaria is becoming more widespread in the northeastern United States, researchers say.

MONDAY, Nov. 12 (HealthDay News) -- Only one-quarter of smoking parents adopt a strict smoke-free car policy, and nearly half who don't enforce such a ban light up while driving with their children, a new study indicates.

MONDAY, Nov. 12 (HealthDay News) -- Drivers with vision loss caused by advanced glaucoma had twice as many vehicle crashes as people with normal vision when using a driving simulator, according to a small, new study.

MONDAY, Nov. 12 (HealthDay News) -- Playing soothing sounds during cataract surgery reduces patients' anxiety, according to a new study.

MONDAY, Nov. 12 (HealthDay News) -- Children of mothers who contract the flu or have a prolonged fever while pregnant may have a very slight increased risk of developing autism spectrum disorder, a new study suggests.

MONDAY, Nov. 12 (HealthDay News) -- Undiagnosed, chronic vision problems are common in U.S. veterans with traumatic brain injury or post-traumatic stress disorder (PTSD), two new studies show.

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay: