Prepping for a Colonoscopy: Why It's a Necessary Evil

THURSDAY, May 30 (HealthDay News) -- Let's face it: the very mention of the word "colonoscopy" is enough to make many people shudder, at least a bit. But, colonoscopy is an extremely effective cancer screening tool, and it's the only cancer screening that can actually prevent cancer from developing in the first place because doctors can remove precancerous polyps during the test.

Delaying Colonoscopy Puts Man in Grave Danger

THURSDAY, May 30 (HealthDay News) -- Like most people, Wisconsin resident Bruce Winkler dreaded the thought of having a colonoscopy.

Sunless Tanners Still a Tough Sell, Survey Finds

THURSDAY, May 30 (HealthDay News) -- In their pursuit of a golden glow, young American women say that beauty concerns, not health worries, will determine how willing they are to use so-called sunless tanning products, a new survey finds.

Health Tip: Help Kids With Diabetes Deal With Shots

(HealthDay News) -- Children with diabetes may need regular injections and blood tests, which can be very scary and uncomfortable.

Health Tip: Manage Your Arthritis

(HealthDay News) -- Taking care of your joints and managing arthritis can help reduce symptoms, improve joint function and lower your healthcare costs.

In Dating Game, Narcissists Get the Girl

THURSDAY, May 30 (HealthDay News) -- Men with high levels of narcissism -- an unrealistically positive self-image coupled with feelings of entitlement -- have an easier time than others attracting a potential mate, new German research says.

Women May Have Natural Defense Against Common STD

THURSDAY, May 30 (HealthDay News) -- Women appear to have a natural defense against the world's most common sexually transmitted infection, a new study says.

Scientists Gauge Radiation Dose From Trip to Mars

THURSDAY, May 30 (HealthDay News) -- Ever dream of traveling to Mars? There could be potential health drawbacks if you did, including a hefty dose of radiation, a new study finds.

Transfusions With Heart Surgery Might Raise Infection Risk

THURSDAY, May 30 (HealthDay News) -- Patients who receive a red blood cell transfusion during or after heart surgery may be at greater risk for infection, according to a new study.

Joblessness Tied to Shortened Lifespans for Less-Educated Women

THURSDAY, May 30 (HealthDay News) -- Life expectancy among less-educated white women is decreasing while their better-educated peers are gaining longevity, a new study finds.

High Doses of Common Painkillers May Raise Risk for Heart Trouble

WEDNESDAY, May 29 (HealthDay News) -- People who take high doses of common painkillers known as non-steroidal anti-inflammatory drugs (NSAIDs) face a greater risk for heart problems, a new analysis shows.

PTSD After Heart Attack Linked to Poor Sleep

THURSDAY, May 30 (HealthDay News) -- People who experience post-traumatic stress disorder following a heart attack may find it hard to get a good night's sleep, a new study indicates.

1 in 5 Americans Goes to the ER Each Year: CDC

THURSDAY, May 30 (HealthDay News) -- Every year, one in five Americans makes at least one trip to the emergency room, new research shows.

Scientists Spot Genes Tied to Success at School, College

THURSDAY, May 30 (HealthDay News) -- Could the secret to educational achievement lie in a person's DNA? A major new study suggests that genes do play some role in how well an individual does at school.

Health Highlights: May 30, 2013

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