• Science just figured out that there's actually a gender difference when it comes to peak exercise heart rate. The old standard formula of "220 minus your age," which has long been used to determine what your target heart rate during exercise, is actually outdated, say researchers. There's a new complicated formula for how to get your actual ideal target heart rate, which you should check out at the link. [Medical News Today]

• Christian Dior cosmetics is launching a new thing you're about to become obsessed with. It's called Dior Addict Fluid Stick, and it's sort of a cross between a gloss and a lipstick. As Dior explains it, they are, "intense lip stain pigments directly encapsulated in spheres of gloss." [Dior]

• Have you heard of the Lifetime Ladder workout plan. It gives you a series of five exercises to do over week-long periods. As you go through the different rungs of the ladder, you can graduate up difficulty levels. Take a look, maybe it's for you? [Lifehacker]

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• A new study published in the journal Science found that hardship in early childhood leads to poorer health later on. Children who received better care as babies -- which included full time day care up to age 5 -- had lower incidences of high blood pressure, obesity, and had higher rates of good cholesterol as adults. As one researcher noted, this means that "adversity matters and it does affect adult health." [New York TImes]

• Dr. Perricone skincare is launching a new makeup line, called confusingly, No Makeup Skincare. It's the company's first foray into color cosmetics. [WWD]

• Vitamin D deficiencies have been linked to a risk for heart disease, but it's still unclear whether adding vitamin D supplements to your diet will help reduce your heart disease risk, soooo great? [Medical News Today]