Fitness expert and former Olympian Les Mills has died at the age of 91, his family has said. The New Zealander first opened a gym in Auckland with his late wife Colleen in 1968, and it later became a ...

One sparks a revolution, while the other structures a nation. Do you know the difference between the Declaration of Independence and the Constitution? Packed with history and visionary ideas (and even ...

Both types of potatoes are rich in fiber, carbs, and vitamins B6 and C. Regular potatoes are higher in potassium, while sweet potatoes provide much more vitamin A. Sweet and regular potatoes are both ...

Most diabetes symptoms affect people of all sexes, but women may be more likely to have vaginal yeast infections, urinary tract infections, and vaginal dryness. Some people with type 2 diabetes have ...

We study treatment-effect estimation using panel data. The treatment may be nonbinary, non-absorbing, and the outcome may be affected by the treatment lags. We make parallel-trends assumptions, but do ...

The canonical difference-in-differences (DD) model contains two time periods, “pre” and “post”, and two groups, “treatment” and “control”. Most DD applications, however, exploit variation across ...

Vitamin D can boost your immunity and strengthen your bones. Vitamin D3 is the more effective form to maintain your body’s vitamin D levels. Vitamin D comes from the sun, foods, and supplements.

Estradiol is one of three forms of the sex hormone estrogen. It is crucial for reproduction, bone health, and weight distribution. It’s considered the strongest type of estrogen in the body. The body ...

Abstract: Compact re-entrant cavities, widely used as microwave resonators, can be employed as high-performance sensors. A new approach is proposed here to calculate the resonance frequency, its ...