What is your first memory? A vivid scene may come to mind, seen from toddler eyes. Unfortunately, that scene may be a work of fiction, a new study finds. That's because scientific literature suggests that it's not possible to have a memory from before the age of 2, said lead study author Shazia Akhtar, a senior research associate at the University of Bradford in England.

When a baby is born, most parents snip the long, fleshy umbilical cord as soon as the birth is over. With a "lotus birth," however, parents allow the cord to remain attached to the placenta until it breaks naturally Some moms and dads even opt to carry the placenta around in a pouch or a bowl — attached to the still- connected umbilical cord in what might be the worst purse design ever.

Among the desert sands of the southwest, the prickly pear cactus (Opuntia species) is easily identifiable by its rounded "leaves," or pads, and brownish needles. The cactus pads are edible all year round, and are famous for the sustenance and water stored in them, according to the Food and Agriculture Organization of the United Nations.

A new report divides coffee lovers into three groups depending on how their bodies respond to caffeine. But as fun as it is for caffeine drinkers to figure out which group they fall into, not all experts are on board with the report's clear-cut conclusions. According to the report, which was published June 6 by the Institute for Scientific Information on Coffee (ISIC), the answer lies in our genes. Specifically, caffeine sensitivity depends partly on a liver enzyme called CYP1A2, which is code

A standard cup of coffee contains around 100 milligrams of caffeine; a Red Bull has 80 mg. But according to the Center for Science in the Public Interest, one caffeinated beverage manages to pack around 200 mg of caffeine into less than 2 fluid ounces (56 milliliters): 5-hour Energy. So, what would happen if you were to drink five 5-hour Energy shots at once? Would you gain 25 hours of energy? Or would the consequences be more severe?

Every day, an estimated 300 to 520 people in the U.S. try heroin, according to the Substance Abuse and Mental Health Services Administration. But how many people who try the drug end up dependent on it? Previous studies estimated that, among those who have used heroin at least once in their lifetime, 20 to 25 percent develop a dependence on the drug.

The current Ebola outbreak in the Democratic Republic of Congo has spread to at least 58 people, and has killed nearly half of those individuals, according to an update today (May 23) from the World Health Organization (WHO). This is the nation's ninth Ebola outbreak since 1976, when the deadly virus was first discovered in a village near the country's Ebola River. But what if scientists were able to predict Ebola outbreaks and stop them before they even started?

Yes, there's a vaccine for the plague, one of the most notorious diseases known to humanity. But unfortunately, this vaccine isn't for humans — it's for prairie dogs. This prairie-dog vaccine isn't new. In 2016, scientists used drones to drop vaccine-laced peanut-butter pellets onto prairie-dog colonies below.