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New Wearable Device Can Measure Your Blood Flow

How much blood is running through your veins, arteries, and capillaries? To find out, you’d typically need to be motionless. Now a new wearable device may soon be able to give you that information even while you’re moving around, doing normal activities. …Continue reading

You’ve Been Misled About What Makes a Good Password

Common advice on how to make a strong password is misleading, according to a new study of password-guessing techniques. “Password must include upper and lowercase letters, and at least one numeric character.” A common scold dished out by websites or software when …Continue reading