biological age

Many women in their thirties and forties experience relentless fatigue and emotional instability, often mistaking perimenopause symptoms for chronic stress from careers or caregiving. This hormonal transition, marked by fluctuating estrogen and progesterone, destabilizes mood and cognition. Ignoring these biological shifts can lead to misdiagnosis and self-doubt, preventing women from seeking crucial medical treatment and support.

That clean-looking annual checkup might be the most expensive piece of paper you misread this year. Here's what India's top doctors say it's leaving out — and what to do about it.

RVT-7 Is A Male Cub Of Ranthambore Tigress T-114

Forgetting a name involves language recall, while failing to recognize a face points to visual recognition networks. Occasional name slips are normal, but persistent face blindness can signal neurocognitive decline. Understanding this distinction helps families identify potential warning signs and seek timely medical evaluation.

Misinformation in fertility medicine causes significant delays and distress. Infertility is often wrongly blamed solely on women, ignoring male factor issues. IVF is frequently delayed, reducing success rates. Low egg or sperm counts don't automatically mean donor conception is the only path. Early, comprehensive evaluation is crucial for couples.

Recovery from illness varies significantly due to a complex interplay of factors. Baseline health, including age, nutrition, and existing conditions, alongside lifestyle choices like sleep and stress management, dictates how quickly the body can fight and repair. Timely medical care further influences healing speed, making recovery a deeply personal process.

Ancient ground squirrels in Canada's Yukon Territory had a surprising diet. Fossilized droppings show these animals ate mammoth, bison, and even large cats. This discovery offers a new look at extinct ecosystems. Researchers extracted DNA from the droppings, dating back up to 700,000 years. The findings highlight the importance of unexpected sources for understanding prehistoric life.

Women's bodies face increasing spine and joint discomfort after age 30. Hormonal shifts, pregnancy, and daily routines contribute to these issues. Ignoring early signs like stiffness or pain can lead to chronic problems. Dr. Rajesh Parasnis advises prioritizing self-care. Simple lifestyle changes, including exercise and proper nutrition, are key to maintaining bone and joint health.

Whaling's impact on humpback whales continues. In the South Pacific, older male whales now father more calves. This shift in reproductive success is linked to changes in the whale population's age structure. Researchers observed this pattern over two decades. The study highlights how human actions can alter species behavior and population dynamics for generations.

A tiny jellyfish, Turritopsis dohrnii, possesses an extraordinary ability to reverse its aging process, essentially becoming immortal. When faced with stress or injury, it reverts to its juvenile polyp stage, allowing for a complete life cycle reset. Scientists are intensely studying this unique phenomenon, hoping to unlock secrets that could revolutionize age-related disease treatments for humans.

The Delhi Subordinate Services Selection Board (DSSSB) has released Advertisement No. 03/2026 announcing 1,979 vacancies for various Group B and Group C posts across Delhi government departments, autonomous bodies and local bodies. The online application process will begin on June 16, 2026, and continue until July 15, 2026. Vacancies are available for teaching, scientific, technical and administrative positions. Selection will involve prescribed recruitment procedures, including examinations and verification stages.

Galápagos wild tomatoes are rewriting evolutionary history, exhibiting a 'reverse evolution' by reactivating ancient genetic defenses lost millions of years ago. This phenomenon, observed on younger western islands, challenges established biological laws like Dollo's Law. Scientists believe this trait reversal, triggered by environmental pressures, offers insights into genetic potential for agriculture and medicine.

In May 2007, Nenets herders in Siberia discovered Lyuba, an intact baby woolly mammoth preserved in permafrost for 42,000 years. This remarkable find provided scientists with unprecedented access to soft tissues and internal organs, offering a unique window into Ice Age life and evolution. Lyuba's well-preserved body became a crucial scientific treasure, enhancing our understanding of extinct mammals.