Today’s Headlines: Bad Memories, Male Menopause and Migraines

Scientists successfully erase unwanted memories: It may sound like fantasy, but scientists in a new study “demonstrated a method in mice that disrupts unwanted memories while leaving the rest untouched.” Scientists dosed mice with methamphetamines and then disrupted the function of certain neurons involved in maintaining memory. Tests showed that “that the mice and rats ‘immediately and persistently’ lost all memories associated with methamphetamine. All the other memories, such as food rewards or foot shock, were still intact.” Researchers hope this will provide “hope for recovering addicts or people suffering from post-traumatic stress disorder (PTSD).” (Medical News Today)

Low estrogen plays role in “male menopause,” study suggests: Men may not be immune to the effects of decreased estrogen, a new study shows. “When researchers lowered estrogen in the study, men got more body fat and when estrogen was higher, they had less body fat.” Male sex drive suffered as well. Researchers found that “the combination of testosterone and estrogen was much better for sexual desire and functioning than testosterone alone.” This discovery could help explain the symptoms of so-called “male menopause,” in which men gain weight and suffer from a slowing libido. (CBS News)

Obesity tied to semi-frequent migraines: study: A new study suggests that being overweight or obese is linked to more frequent episodic migraines. According to the research, episodic migraines, which by definition occur less than every other day, are “almost twice as common among obese people as among normal-weight adults.” Researchers found that “the obesity-migraine link was stronger among women and people under 50 years old.” However, it’s unclear whether obesity is causing the migraines, or whether the migraines may be contributing to obesity. (Reuters