Here’s some more bad news for sushi fans, scientists have discovered that a tapeworm known to infect fish found in Asia is now also in the United States.

Earlier this week, researchers found nearly 50% of sushi in Los Angeles is actually mislabeled. Researchers visited 20 sushi restaurants in L.A. from 2012 and 2015 and found that 47% of all sushi were inaccurately labeled. Then researchers found that the problem expanded to grocery stores, with fish also being mislabeled. Now, researchers have found parasites in salmon in the US.

The CDC published the study in the February issue 2017 of Emerging Infectious Diseases. Roman Kutcha from the Institute of Parasitology explained that in 2013 he examined 64 different wild Pacific salmon obtained from local fisherman. After examining the fish, researchers found Diphyllobothriasis parasitic larva inside Alaskan pink salmon. Kutcha explained that this type of salmon from North America’s Pacific coast is a source of human parasite infection. Researchers also point out that because Pacific salmon is transported unfrozen, parasites are able to survive after being transported to other parts of the world.

This is not the first time researchers discovered tapeworms in salmon. In 2009, Naoki Arizona from the University of Medicine in Kyoto, Japan found the same type of parasite was being found in urban areas in Japan and Europe. Researchers at the time explained that people who eat raw seafood, accounted for the increase in parasitic infections in humans.

Diphyllobothriasis also known as the Japanese broad tapeworm has the ability to grow up to 30 feet long once inside the human body. According to the U.S. Centers for Disease Control and Prevention, the Japanese tapeworm typically doesn’t exhibit any symptoms. However, overtime the tapeworm can lead to vitamin B12 deficiency, weight loss, and stomach pain.

According to the CDC, the best way to diagnosis Diphyllobothriasis parasite is by a microscopic identification of eggs in the stool. In turn, the parasite can be treated with several medications including Praziquantel. However, the safety of the medication has not been established for children under the age of four.

Researchers have discovered why stress is linked to heart attacks.

Earlier this month, scientists discovered alcohol abuse was linked to heart attacks. While other researchers later found a ‘local’ bar had health benefits, Harvard Medical School students published a study correlating stress to heart attacks.

A myocardial infarction or heart attack, is a cardiovascular event that has the possibility of killing someone. With more than three million U.S. cases every year, a heart attack happens when a blood clot blocks blood flow to the heart. Without enough blood, there is less oxygen causing tissue damage and even death. Some of the treatments following a heart attack include major lifestyle changes, including reducing stress. During a new landmark study by Harvard Medical School, researchers linked brain activity to heart attacks.

In the study published in The Lancet, Dr. Ahmed Tawakol, Amornia Ishai, and their team of researchers examined the brain; this team discovered how different parts of the brain affected the cardiovascular system.

Researchers examined nearly 300 patients in a longitudinal study. Researchers found activity in the brain’s amygdala lead to an increase in bone marrow activity, inflammation of arteries, and an increased risk of heart attacks.

Ultimately, Tawakol, and Ishai explained that this is the first study to link brain activity to cardiovascular disease. In addition, researchers found how the brain’s amygdala plays a part in cardiovascular disease events.

Stories regarding the brain’s amygdala has been in the news quiet frequently lately. Earlier this month, the amygdala made headlines after researchers predicted how long humans would survive if a zombie outbreak took place. Then, researchers found emotional experiences had an impact human memory. Finally, last December scientists discovered the way humans breathe can have an impact on memory and fear.