El ejercicio modifica cómo actúa el ADN

La actividad física se relaciona con cambios en la estructura del ADN sin modificar la secuencia de letras de los genes, su estructura primaria, de forma que impacta en cómo se expresa la información genética, según demuestra un estudio liderado por investigadores del Instituto Hospital del Mar de Investigaciones Médicas (IMIM).

El estudio, publicado en la revista ‘Medicine and Science in Sports and Exercise’, destaca que realizar actividad de forma moderada-vigorosa, es decir, caminar a diario de forma rápida o practicar algún deporte durante, al menos 30 minutos, permite maximizar beneficios para la salud.

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Scientists Reconstruct Entire Genome of a Woman From Her 5,700-Year-Old Chewing Gum

In a landmark study, scientists have reconstructed the genome of an ancient human who lived some 5,700 years ago in what we now know as southern Denmark.

No known physical remains of the woman in question exist. All we have to go on, in fact, is just a small lump of birch pitch – an ancient tar-like substance distilled from heated tree bark. Amazingly, this sticky blob was enough to not only tell us that the woman once walked the Earth, but also hint at numerous clues about her identity.

The reason for that is because birch pitch was sometimes chewed by ancient humans, in addition to being used as an adhesive on stone tools and weapons as far back as the Middle Pleistocene (which ended roughly 126,000 years ago).

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