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.

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.

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.

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.

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.

A tiny fossil, Saccorhytus coronarius, once thought to be a human ancestor from China's Cambrian era, has been reclassified. Advanced imaging revealed supposed gill slits were broken spines, excluding it from the deuterostome lineage. This spiky marine creature is now believed to be an early ecdysozoan, highlighting the complexities of fossil interpretation and the scientific self-correction.

Cats possess unique nose prints, can leap several times their body length, and spend most of their lives sleeping. While purring often signifies happiness, it can also indicate distress. Their independently moving ears act like satellite dishes, and studies show they recognize their owners' voices but choose not to always respond.

World Brain Tumour Day highlights the importance of brain health, noting that while direct lifestyle links to brain tumours are unclear, healthy habits can significantly support overall brain function. Experts emphasize that a balanced diet, adequate sleep, exercise, and stress management bolster brain resilience and cognitive performance, even as research into tumour causes continues.

Illegally introduced northern pike in Alaska are now a growing concern, with a new study revealing they are consuming significantly more fish due to rising river temperatures. This trend, linked to climate change, exacerbates threats to already struggling native salmon populations. Researchers warn this invasive species and warming waters could combine to devastate local ecosystems.

In 1978, two Texas teenagers discovered a Columbian mammoth femur, leading to the unearthing of 24 mammoths and other Ice Age mammals. This site, now a national monument, preserves the only known nursery herd of Columbian mammoths in the U.S., offering unique insights into their behavior and a tragic mass death event.

Biohacker Bryan Johnson revealed his recent international trip might be his last, citing significant biological disruption from air travel. He shared data showing prolonged recovery times for biomarkers after his journeys. Johnson suggests a recovery period of one day per timezone crossed, questioning the true cost of frequent long-distance flights.

Amidst the 2026 NEET paper leak controversy, Pragya Gupta's story offers hope. She failed NEET a decade ago but pursued a successful career in biotechnology, graduating from Columbia University. Gupta emphasizes exploring diverse career paths beyond competitive exams, highlighting that a setback can lead to unexpected and fulfilling opportunities.

Nominations are now open for the National Awards to Teachers 2026. Faculty from Higher Educational Institutions and Polytechnics can apply. The awards recognize contributions to teaching, research, and student mentorship. Applications are accepted online until July 5, 2026. Teachers can self-nominate, or be nominated by their institutions or peers. This is a significant opportunity for educators across India.