Period loss, or amenorrhea, affects approximately 3% to 4% of women of reproductive age. It can be the body’s response to an energy crisis resulting from a combination of too much exercising ...

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Kondratieff Wave, named after Russian economist Nikolai Kondratieff, refers to cycles, lasting up to 60 years, experienced by capitalist economies.

The ICC has unveiled the schedule for the 2025-27 World Test Championship, featuring 71 matches among nine teams. Sri Lanka and Bangladesh will kick off the cycle on June 17, while Australia is ...

The trinational engine effort aims to bring adaptive-cycle power and propulsion to the Future Combat Air System fighter.

Dear Annie: My family used to hold grudges against me and now I'm doing the same thing to my stepchildren. How do I break the cycle?

Dear Annie: I’m a 44-year-old autistic man living in Montana. I am happily involved with a woman who has five kids, ages 12 to 24. My question is about breaking unhealthy patterns. Growing up ...

TV host Timmy Mallet has praised the "profoundly gorgeous" kindness of people after completing a cycle around the coastline of the island of Ireland. While on the 6,000km cycle of roads, paths and ...

Carbon cycle articles from across Nature Portfolio The carbon cycle is the biogeochemical cycle focused on carbon and how it is sequestered in and moves between different reservoirs in the Earth ...

Kents Hill resident Paul Harris completed a 22,442 mile cycle challenge on behalf of the British Normandy Memorial Trust ...

After pedalling more than 2,100 kilometres over 27 days, Ollie White has arrived at Glastonbury with a ticket in his pocket and a grin on his face.