SYRACUSE — The American Heart Association has issued a sobering reminder: Research shows that more people die from heart attacks during the last week of December than at any other time of the year.

“No one wants to think of tragedy during this joyous time of year as we gather with family and friends,” Dr. Nelly Kazzaz, American Heart Association board member and cardiologist at SJH Cardiology Associates at Crouse Medical Practice, said in a news release. “However, these startling facts are very sobering. We don’t know exactly what triggers this increase in heart attacks during the holidays. It’s likely a combination of factors.”

But, Kazzaz added, “Winter weather has been noted to increase heart attack risk due to restricted blood flow when arteries may be constricted in cold temperatures. We also know the holidays bring a lot of added stress to many people. There are lots of parties and family gatherings where many tend to overindulge in rich foods and drink.”

According to Kazzaz, one of the most critical factors might be that people ignore important warning signs of a heart attack or stroke.

“While you may not want to spend the holidays in a doctor’s office or hospital, getting checked out and receiving prompt treatment if there is a problem is one of the best gifts you can give yourself and your loved ones for all the celebrations to come,” she said.

Starting CPR immediately and calling 911 could be the difference in life or death in those situations.

“Hands-Only CPR is something nearly everyone can learn and do,” Kazzaz said. “We encourage at least one person in every family to learn CPR because statistics show that most cardiac arrests occur outside the hospital and often in the home.”

The American Heart Association has a short instructional video about hands-only CPR at heart.org/HandsOnlyCPR.

“Watching the video and learning Hands-Only CPR could be a lifesaving and lifechanging activity for the family to do together as you’re gathered for the holidays,” Kazazz said.

Kazazz notes that family gatherings are also a good time to talk about family health history.

“Many of the health factors that impact heart disease and stroke are heredity,” she said. “If any of your parents, siblings or grandparents have had a heart attack or stroke, you are likely at higher risk, too. But the good news is, you can lower your risks with preventive measures. Knowing that history is an important first step.”