Health

Paleo fact and fiction: The key to being healthy

Humans have conquered smallpox and drastically reduced child mortality rates, yet we now face problems never seen before. Conditions like heart disease, obesity, cancer, and diabetes pose serious threats to our health. How ...

HIV & AIDS

Deeper view of HIV reveals impact of early mutations

Mutations in HIV that develop during the first few weeks of infection may play a critical role in undermining a successful early immune response, a finding that reveals the importance of vaccines targeting regions of the ...

Psychology & Psychiatry

Memory limits give rise to open-ended language abilities

A hallmark of human language is our ability to produce and understand an infinite number of different sentences. This unique open-ended productivity is normally explained in terms of "structural reuse"; sentences are constructed ...

Genetics

First animal model of recent human evolution

The first animal model of recent human evolution reveals that a single mutation produced several traits common in East Asian peoples, from thicker hair to denser sweat glands, an international team of researchers reports.

Genetics

Protein found to regulate red blood cell size and number

The adult human circulatory system contains between 20 and 30 trillion red blood cells (RBCs), the precise size and number of which can vary from person to person. Some people may have fewer, but larger RBCs, while others ...

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