Primary amenorrhea is the absence of periods since you were born. It is diagnosed when a female has had no period by age 15. Primary amenorrhea is also described when a girl's first period (called ...

Increasing cloud cover on Thursday with milder temps by afternoon Cloudy, mild and breezy for the end of the week with a chance of rain A few light showers are possible during the day Friday ...

Long underwear — a.k.a. long johns ... so we can make it into incredibly light products — like base layers.” Effective synthetic base layers also exist, and I’ve included a number of ...

Wednesday starts with periods of light snow, blown in on 15 km/h winds, with a high of -8 C and a wind chill of -13 in the afternoon. The winds will persist overnight, bringing a 60 per cent ...

A few weak system will bring periods of light snow and flurries to the area through Thursday before temperatures warm up by the weekend. There will be a couple of rounds of light snow moving ...

This holiday season is a good time to replace your light bulbs to give your surroundings a new glow. You can add a few decorative lights to give it a festive vibe. But there's a lot to consider ...

so there’s no need to fumble for a switch or button — the light automatically flickers awake when I approach it, then dims and shuts off after a period of inactivity. I found this to be ...

A few weak systems will bring periods of light snow and flurries to the area through Thursday before temperatures warm up by the weekend. Scattered snow showers and flurries will persist into the ...

Researchers have demonstrated a prototype mobile all-light communication network, paving the way for seamless connectivity across air, land and underwater environments—even when communication nodes ...

Researchers have demonstrated a prototype all-light communication network that can achieve seamless connectivity across air, land and underwater environments, even when communication nodes are on ...