Physiology
COVID-19

Preexisting antibodies against SARS-CoV-2
Antibodies against other varieties of coronavirus are in some cases capable of recognizing SARS-CoV-2 and providing some degree of protection to those who have not yet contracted the COVID-19 pathogen
By Redação
Physiology

A new pair of salivary glands
Newly identified salivary glands are located in the area between the nose, ears, and throat
By Redação
Photolab

Mutilated courtship
Scorpions of the genus Ananteris can shed their stinger when attacked
By Redação
Sports

Sports and injuries
Athletes over the age of 30 should pay special attention to injury risk
By Redação
Physiology

The orphans of the Romanian dictatorship
Adults who were deprived of food and social contact in their early years have smaller brains, according to a study
By Redação
Medicine

Marathons and the heart
The physical preparation for running a marathon for the first time can lower blood pressure and stiffen the aortic valve
By Redação
Health

Exercise with blood-flow restriction reduces symptoms of arthritis
Performing low-load resistance exercises can reduce the pain and discomfort of rheumatoid arthritis
By Redação
Medicine

Jean Purdy’s overlooked contribution to IVF
British nurse and embryologist Jean Purdy made a decisive contribution to the development of in vitro fertilization
By Redação
Twins Study

Effects of a long space journey
A long stay in space causes changes to the body that can last for months, even after returning to Earth
By Redação
Cover

The mechanisms of aging
Studies of living cells and organisms identify genetic and molecular phenomena associated with physical and mental decline
By Marcos Pivetta and Ricardo Zorzetto
CHRONOBIOLOGY

A clock that works in the dark
Researchers come together to reveal the circadian rhythms of tuco-tucos
fertility
Male fertility halves in 40 years
The number of sperm produced by men has fallen by half over the last 40 years
By Redação
Genetics

The secret of seedless grapes
Researchers confirmed the molecular mechanism that causes grapes to be seedless
By Redação
biodiversity

Tiny spiders have different mechanisms for recognizing colors
Tiny spiders have different mechanisms for recognizing colors
By Redação
Chronobiology

Chronobiology: rhythms and cycles
Physics, biology and technology unite to unravel a rodent's circadian rhytms
By Redação
Cytology

The hanging gardens of cells
Cultures in 3D environments reveal unknown structures
By Diego Freire
Cover

The mechanisms of aging
Studies identify phenomena associated with physical and mental decline
By Marcos Pivetta and Ricardo Zorzetto