Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:
Prince Philip Returns Home Following Hip Replacement Surgery
Prince Philip returned to Windsor Castle on Friday following hospitalization for hip replacement surgery.
"His Royal Highness The Duke of Edinburgh left King Edward VII Hospital at midday today, following a hip replacement operation last week. The Duke will continue his recovery at Windsor," the palace said in a statement. "His Royal Highness would like to convey his appreciation for the messages of good wishes he has received."
The 96-year-old royal had the operation last Tuesday, according to People magazine. Philip retired from public life last year with the full support of the Queen, his wife of 70 years.
He was absent from the royal family's Easter service attended by Queen Elizabeth, Prince William and Kate Middleton at Windsor Castle.
Philip's grandson, Harry, will marry American actress Meghan Markle at Windsor Castle in less than seven weeks. Philip is also due to become a great-grandfather for the sixth time when Kate gives birth to her third child later this month, the magazine said.
Arnold Schwarzenegger Healing After Heart Surgery
After having open heart surgery last month, actor Arnold Schwarzenegger announced this week that he is on the mend.
"I just want you to know that I'm feeling much better. I can't say, even with my positive attitude, that I'm great, because I'm not great yet," the former California governor shared in a video posted Thursday on Twitter. "Great is a totally different level. But I'm good. I get good care, good doctors, good nurses. Everything is fantastic."
"And we move forward," he declared as he sat in front of a chess board, a game he explained he is playing to sharpen his mind and memory. "So I will stay in touch with all of you. And thank you all for being such jewels."
The star of the Terminator movies was discharged from Cedars Sinai hospital on April 6 after having a heart valve replacement procedure on March 29.
He had the same surgery in 1997, but the old valve had worn out, according to US Weekly.
Schwarzenegger shares kids Katherine, 28, Christina, 26, Patrick, 24, and Christopher, 20, with estranged wife Maria Shriver.
Limit Alcohol To One Drink a Day: Study
A new study says adults should limit their alcohol consumption to one drink a day, which is lower than drinking guidelines in the U.S. and many other countries.
The researchers warned that adults who exceed the one-drink-a-day limit can expect to die at a younger age than those who do not, the Associated Press reported.
Current U.S. guidelines recommend no more than seven drinks a week for women, but 14 drinks a week for men, the Associated Press reported.
A 40-year-old man who drinks as much as the U.S. guidelines allow could expect to live one to two years less than one who has a maximum of seven drinks a week, according to the study in the Lancet medical journal.
The researchers analyzed 83 studies that were conducted in 19 countries and included nearly 600,000 people who drank alcohol.
"What this is saying is, if you're really concerned about your longevity, don't have more than a drink a day," David Jernigan, an alcohol researcher at Johns Hopkins University who was not involved in the study, told the AP.
Canadian Online Pharmacy Faces $34 Million in Fines
An online pharmacy called Canada Drugs faces $34 million in fines under a plea deal made with U.S. prosecutors.
They say the international company illegally imported unapproved and misbranded drugs from all over the world, the Associated Press reported.
Canada Drugs has made at least $78 million through illegal drug imports, including fake versions of the cancer drugs Avastin and Altuzan that had no active ingredients, according to prosecutors.
They spent more than two years trying to get the company to appear in U.S. court to face felony charges, finally securing a plea deal late last year, the AP reported.
On Friday, a judge will decide whether to approve the prosecutors' recommended sentences of $29 million forfeited, $5 million in fines and five years' probation for the company, and six months' house arrest, five years' probation and a $250,000 fine for company founder Kristian Thorkelson.
Under the deal, Canada Drugs would permanently halt sales of all unapproved, misbranded and counterfeit drugs and would surrender all the domain names of the numerous websites it used to sell drugs, the AP reported.
The final decision on the sentences is up to U.S. District Judge Dana Christensen. An advocacy group says the plea deal terms are too lenient and wants the judge to impose more severe penalties to deter similar crimes in the future.