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Is cold-water immersion good for our health? Cold-water immersion is increasingly popular among athletes and wellness warriors. But how much of the hype is backed by science? In the mo… Started by Dr. Krishna Kumari Challa	1	Feb 1, 2025 Reply by Dr. Krishna Kumari Challa
How bats are helping humans Some people fear bats. After COVID19, this fear has increased several fold. Some even suggested that we kill all the bats in the world! It… Started by Dr. Krishna Kumari Challa	2	Jan 31, 2025 Reply by Dr. Krishna Kumari Challa
Scientists uncover how cancer cells hijack T-cells, making it harder for the body to fight back Researchers have discovered a surprising way cancer evades the immune system. It essentially hacks the immune cells, transferring its own f… Started by Dr. Krishna Kumari Challa	1	Jan 25, 2025 Reply by Dr. Krishna Kumari Challa
How can seeds germinate after thousands of years of dormancy? Q: If a seed is planted in the ground even after lakhs of years, the plant will sprout.. But how did that seed manage to hide life within i… Started by Dr. Krishna Kumari Challa	1	Jan 25, 2025 Reply by Dr. Krishna Kumari Challa
The science of laughing and crying Q: Does laughing really help people? Krishna: My reply is going to surprise you. You might have heard this… In modern society, fierce compe… Started by Dr. Krishna Kumari Challa	2	Jan 23, 2025 Reply by Dr. Krishna Kumari Challa
Mom's X chromosome could speed up brain aging Women are born with two X chromosomes and inherit one from each parent. But in every cell of their body, just one X chromosome is needed—s… Started by Dr. Krishna Kumari Challa	1	Jan 23, 2025 Reply by Dr. Krishna Kumari Challa
Human use of fire has produced an era of uncontrolled burning: Welcome to the Pyrocene Los Angeles is burning, but it isn't alone. In recent years, fires have blasted through cities in Colorado, the southern Appalachians and… Started by Dr. Krishna Kumari Challa	1	Jan 23, 2025 Reply by Dr. Krishna Kumari Challa
Wildfires ignite infection risks by weakening the body's immune defenses and spreading bugs in smoke Over the past several days, the world has watched on in shock as wildfires have devastated large parts of Los Angeles. Beyond the obvious… Started by Dr. Krishna Kumari Challa	1	Jan 17, 2025 Reply by Dr. Krishna Kumari Challa
Rewrite the textbooks: Damage to RNA, not DNA, found to be main cause of acute sunburn! We have all been told to avoid direct sunlight between 12 noon and 3 p.m., seek out shade and put on sunscreen and a hat. Nevertheless, mos… Started by Dr. Krishna Kumari Challa	1	Jan 17, 2025 Reply by Dr. Krishna Kumari Challa
Study shows hot leaves can't catch carbon from the air. It's bad news for rainforests—and Earth On the east coast of Australia, in tropical North Queensland, lies the Daintree rainforest—a place where the density of trees forms an almo… Started by Dr. Krishna Kumari Challa	1	Jan 16, 2025 Reply by Dr. Krishna Kumari Challa