Scientists mimic the earliest stages of human development

Scientists have modeled the first step in human development in a laboratory with the goal of better understanding how organs form. In the new study, the researchers edited groups of human pluripotent stem cells to silence genes important for cellular mechanics. The alterations prompted the cells to move around and self-organize until they were divided […]

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Study shows DNA of people with childhood abuse or depression ages faster

DNA from people who suffer from major depression is biologically older than that of healthy people by on average 8 months, suggesting that they are biologically older than their corresponding calendar age. This effect was greater in people who have had childhood trauma, such as violence, neglect or sexual abuse, who show a biological age […]

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Time-traveling illusion tricks the brain

Researchers have developed two new illusions that reveal how the senses can influence each other — in particular, how sound can give rise to visual illusions. These illusions occur so quickly that they illustrate a phenomenon called postdiction (as opposed to prediction) in which a stimulus that occurs later can retroactively affect our perceptions of […]

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We have more than enough calories, but what about other nutrients?

A new study is the first to quantitatively map the flow of energy, protein, fat, essential amino acids and micronutrients from ‘field-to-fork’ at a global level and identify hotspots where nutrients are lost. The study shows that while we produce far more nutrients than is required for the global population, inefficiencies in the supply chain […]

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