Scientists discover how a single cell builds a brain with 170 billion cells

How does a single cell build a brain with billions of precisely organized neurons? Researchers suggest that brain cells use their lineage—their cellular family tree—as a kind of positional map. Cells that come from the same ancestor stay near one another, helping the brain organize itself without relying solely on chemical signals.

from Latest Science News -- ScienceDaily https://ift.tt/1gTEo2U

A NASA satellite caught a giant tsunami doing something no one expected

A Pacific-wide tsunami triggered by a magnitude 8.8 Kamchatka earthquake gave scientists their first detailed satellite view of a major tsunami in motion. The observations revealed unexpected wave behavior and helped uncover a larger earthquake rupture than earlier models predicted.

from Latest Science News -- ScienceDaily https://ift.tt/L7iVja4

Osteopenia is silently weakening bones in millions of people

Osteopenia is a common but often overlooked condition that causes bones to become less dense and more fragile. Because it develops silently, many people only discover they have it after a fracture or bone scan. Aging, menopause, poor diet, and inactivity can all contribute to bone loss. Fortunately, exercise, adequate calcium and vitamin D, and other healthy habits can slow or even partially reverse the decline.

from Top Health News -- ScienceDaily https://ift.tt/h3BuMwd

One tiny mutation may explain how bat viruses become human threats

Scientists found that one tiny genetic change can completely alter how a coronavirus behaves in different species. Comparing SARS-CoV-2 with a closely related bat-only virus, they showed that a single amino-acid difference affects whether the immune system fights back or gets suppressed. This may help explain how some animal viruses make the leap to humans and become far more dangerous.

from Latest Science News -- ScienceDaily https://ift.tt/qC7FNPl

Scientists say most people need more protein than current guidelines suggest

A new review suggests that doing more exercise and eating more protein than current minimum recommendations may help people stay stronger, sharper, and more independent as they age. The goal isn't building a beach body—it's extending healthspan and maintaining the ability to fully enjoy life for decades longer.

from Latest Science News -- ScienceDaily https://ift.tt/Junrma6

Scientists say most people need more protein than current guidelines suggest

A new review suggests that doing more exercise and eating more protein than current minimum recommendations may help people stay stronger, sharper, and more independent as they age. The goal isn't building a beach body—it's extending healthspan and maintaining the ability to fully enjoy life for decades longer.

from Top Health News -- ScienceDaily https://ift.tt/Junrma6

Ebola and hantavirus can start like the flu but turn deadly fast

Two dangerous viruses are back in the spotlight, reminding health officials how quickly infectious diseases can become serious threats. Hantavirus, often linked to rodents, can cause severe heart and lung complications and has no specific treatment or vaccine, while certain strains can even spread between people. Ebola remains one of the world's most feared diseases, with some outbreaks killing up to half of those infected, although vaccines and antivirals have improved outcomes for some strains.

from Top Health News -- ScienceDaily https://ift.tt/4n3E2HF