(HealthDay News) -- The Achilles tendon is what joins the muscles in the calf to the heel bone. When it is overused or injured, it becomes inflamed -- a condition called Achilles tendonitis.

(HealthDay News) -- Wheezing is a whistling sound that occurs when breathing tubes inside the lungs become narrowed or inflamed.

THURSDAY, June 17 (HealthDay News) -- Children with new-onset epilepsy of unknown origin have a much higher rate of remission than those with symptomatic epilepsy, caused by underlying brain damage or disease.

THURSDAY, June 17 (HealthDay News) -- A sense of direction appears to be hard-wired in the brain at birth, a new study with rats has found.

THURSDAY, June 17 (HealthDay News) -- Cuts in Medicare payments to doctors who administer outpatient chemotherapy drugs actually led to an increase in treatment rates among Medicare recipients, finds a new study.

THURSDAY, June 17 (HealthDay News) -- As Americans decrease their salt consumption, thyroid experts worry that some may obtain too little iodine.

THURSDAY, June 17 (HealthDay News) -- Despite years of hype around the issue, less than one in 10 American adults now utilize electronic medical records or turn to e-mail to contact their doctor, a new Harris Interactive/HealthDay poll finds.

THURSDAY, June 17 (HealthDay News) -- Finding common ground with others often leads to a sense of satisfaction, and a new study suggests that the reason why is because the "reward" area of the brain is activated when people agree with our opinions.

THURSDAY, June 17 (HealthDay News) -- Two gene mutations linked to a rare, inherited bone disorder called metachondromatosis have been identified by U.S. scientists.

THURSDAY, June 17 (HealthDay News) -- Researchers have identified a gene mutation that increases the risk of blood clots in women taking the anti-cancer drug tamoxifen after surgery for early-stage breast cancer.

THURSDAY, June 17 (HealthDay News) -- They're out there on the Web: Sites that offer tips to successful purging or water-only fasts; others that list methods of hiding rapid weight loss from parents and doctors.

THURSDAY, June 17 (HealthDay News) -- Patients who take the painkiller celecoxib for arthritis pain and inflammation are less likely to suffer gastrointestinal damage than those who take diclofenac plus omeprazole, a new study finds.

THURSDAY, June 17 (HealthDay News) -- For Botox users concerned that the muscle-paralyzing injections will rob their face of its ability to show emotion, a new study suggests that people injected with the toxin might end up with less strong emotion to display in the first place.

THURSDAY, June 17 (HealthDay News) -- Although the pandemic H1N1 "swine" flu that emerged last spring has stayed genetically stable in humans, researchers in Asia say the virus has undergone genetic changes in pigs during the last year and a half.

THURSDAY, June 17 (HealthDay News) -- In early experiments with mice, scientists have found a bacteria living in the gut may trigger an immune response that can result in rheumatoid arthritis.

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

(HealthDay News) -- Here are the latest clinical trials, courtesy of ClinicalConnection.com:

THURSDAY, June 17 (HealthDay News) -- Recent years have seen a steep rise in U.S. emergency department visits by people abusing prescription pain drugs such as OxyContin, Vicodin and Dilaudid, a new report finds.

THURSDAY, June 17 (HealthDay News) -- A U.S. Food and Drug Administration advisory panel voted unanimously on Thursday to recommend approval of a new emergency contraception pill that is effective for a longer period of time than the "morning after" pill known as Plan B.

THURSDAY, June 17 (HealthDay News) -- As the first anniversary of the signing of the Tobacco Control Act approaches, several key provisions of the law that gives the U.S. Food and Drug Administration the power to regulate tobacco products are set to take effect.

THURSDAY, June 17 (HealthDay News) -- The chemotherapy drug Jevtana (cabazitaxel) has been approved by the U.S. Food and Drug Administration to treat advanced prostate cancer that worsens despite use of a standard drug therapy, docetaxel.