For example, the growth chart percentile calculator takes your child’s measurements of height, weight, or body mass index at any time from age two until … Read More

Head circumference is how big your baby’s head is. That’s important for understanding how your little one’s brain is growing early on. To get the … Read More

But it’s a coordinate; not a verdict. It’s true that two and a half kilograms look tiny compared with an average baby born at forty … Read More

Your urologist sends you home with a piece of paper: a lab slip. On it is single number. That’s your prostate specific antigen (PSA) score. … Read More

The PSA Velocity Calculator converts a sequence of prostate-specific antigen blood tests into a clear picture of the rate at which that number changes over … Read More

This is the dilution percentage calculator for essential oils for aromatherapy applications. It takes the mystery out of blending essential oils safely. Each diluted solution … Read More

Your body maintains a very tight range for pH of your blood. In fact, it’s 7.35-7.45. No matter what you eat, breathe, or do, that … Read More

Waiting the two weeks are incredibly stressful, it’s like waiting for something biological to happen that you can’t see! You’ve figured out when you’re ovulating, … Read More

Ovulation sounds like a point in time. It feels like there is a single moment when an egg is released, and then you either have … Read More

You might think it’s all about the number of hours you slept. It isn’t always. It’s about which part of the sleep cycle you woke … Read More