proceedings of the national academy of sciences

Alzheimer’s disease linked to high levels of copper

US scientists have found that a lifetime of too much copper in our diets may be contributing to Alzheimer's disease.…

11 years ago

Near-death experiences explained by brain electrical activity

Scientists discovered that a surge of electrical activity in the brain could be responsible for the vivid experiences described by…

11 years ago

Bryophytes: Little Ice Age plants revived after centuries

Scientists have announced that plants that were frozen during the "Little Ice Age" centuries ago have been observed sprouting new…

11 years ago

Why penguin can’t fly

Scientists say they have found an answer to why the penguin is unable to fly. Researchers believe that the bird's…

12 years ago

Babies can hear syllables as early as three months before birth

A French research team has found that babies can decipher speech as early as three months before birth. The evidence…

12 years ago

Poor sleep has a dramatic effect on internal workings of human body

British researchers have found that a run of poor sleep can have a dramatic effect on the internal workings of…

12 years ago

Cannabis smokers at risk of significant and irreversible reduction in their IQ

A new research found that young people who smoke cannabis run the risk of a significant and irreversible reduction in…

12 years ago

Bluefin tuna at record radioactive contamination from Fukushima nuclear accident

A record radioactive contamination from last year's Fukushima nuclear accident has been detected in Pacific Bluefin tuna caught off the…

12 years ago

Rewritable DNA used as memory storage within biological systems

US researchers from Stanford University have demonstrated a means to use short sections of DNA as rewritable data "bits" in…

13 years ago

Learning a second language can boost brain power

Researchers from Northwestern University, US, say bilingualism is a form of brain training - a mental "work out" that fine-tunes…

13 years ago

Traces of Ancient Viruses Thrive in Human DNA

Researchers have found that traces of ancient viruses which infected our ancestors millions of years ago are more widespread in…

13 years ago

About 9,000 Syrian ancient sites discovered using satellite images

About 9,000 of possible new ancient sites have been discovered by archaeologists using computers to scour satellite images. Jason Ur…

13 years ago

Russia: ancient plants brought to life after 30,000 frozen years

Russian scientists have grown plants from fruit stored away in permafrost by squirrels over 30,000 years ago. The fruit was…

13 years ago

Huge Burmese python caught in Everglades before it could lay 59 baby snakes eggs

A huge Burmese python was caught by rangers in Everglades, Florida, before it could lay eggs containing the 59 super-predators…

13 years ago

Skin cells converted into brain components at Stanford University

Researchers studying mice at the Stanford University School of Medicine in California have converted skin cells directly into cells which…

13 years ago

Negative social interactions are linked to cancer, heart disease and high blood pressure

According to experts, relationships may be as vital to good health as a balanced diet and plenty of rest. Scientists…

13 years ago