Many people are unfamiliar with arterial blockages away from the heart. Peripheral artery disease, or PAD, affects African Americans much more than other populations for unknown reasons. An expert physician discusses PAD, the possible consequences, warning signs, and a clinical trial of treatments.

Major surgery such as a heart bypass may increase the risk of dementia. Then, a study finds that gun violence is up by 30% since the start of the pandemic. Also, could the anxiety of being heard by someone else play a role in stuttering? And finally, research says about half of pregnancies in the United States are unintended.

Among active duty and veterans of the War on Terror, suicides have claimed four times more lives than combat since 9-11, according to a recent study. The study’s author discusses why the toll is higher than for previous conflicts, and he and another expert in tragedy recovery discuss what the military, VA, and loved ones can do to prevent suicide.

Twins share a bond that can’t be understood by non-twins. They’re often best friends and closest confidantes with an uncanny connection. When one twin suddenly dies, it can leave a huge hole and in the life of the other. A twinless twin who became a therapist specializing in twin loss discusses the issue.

Even if the Covid pandemic were to disappear tomorrow, a new study shows that the human toll of Covid would go on. Then, among college-educated women, unwed motherhood isn't as rare as it used to be. And finally…people with bipolar disorder may someday be given dietary guidelines to help control it.

Facial recognition technology is everywhere, from your smartphone to the grocery store to city streets. But do we really want to be constantly tracked? Law enforcement finds it immensely helpful, but many experts say it’s a massive invasion of privacy that needs limitation. Experts discuss.

Wild animals carry out “criminal acts” with amazing frequency, ranging from simple breaking and entering to theft to manslaughter. Wildlife managers spend much of their time trying to prevent these acts or clean up after them. Noted science writer Mary Roach discusses animal criminals and how human behavior is encroaching on wildlife habitat, forcing them into more criminal acts than ever.

An influential government task force issues new advice about low-dose aspirin. Plus, a study finds that people with natural immunity to Covid-19 don’t have it for very long. And finally, safe sex is still important--a quarter of people with STDs don’t tell their partners.

Many experts believe we have missed our chance to eliminate Covid-19, and that now it is very likely to become an endemic disease--one that persists, though at lower levels, and never goes away. Two noted infectious disease experts discuss what that means for precautions and lifestyles in perpetuity.

Doctors have learned that childhood allergies and asthma may have their start in dry, dysfunctional skin in infancy, when allergens such as food particles enter the body through cracks in the skin. A noted pediatric allergist discusses this ”atopic march” and ways to combat it.