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Massive Ancient-DNA Study Reveals Natural Selection Has Accelerated in Recent Human Evolution

Hundreds of genes selected in West Eurasia since farming began, many linked to health

7 min read
Illustration of two stylized DNA strands with digital-looking dots and lines. Behind them are connected lines suggesting computation and linkage.

Not Wanting To Eat Protein May Be Early Herald of Cancer Cachexia

Study in fruit flies uncovers earliest known sign of impending muscle and fat wasting

4 min read
Microscopy shows a constellation of green dots, forming the outline of a fruit fly brain structure.
Harvard Medicine magazineResearch Care Delivery

Your Gut Is a Brain

Trisha Pasricha talks about her new book and her lifelong obsession with the gut

8 minute read
Trisha Pasricha stands in a hospital room

Medical Students Share Joy, Meaning of Mentored Scholarly Projects

86th annual Soma Weiss Student Research Day spans medicine, science, humanities

5 min read
Two women hug in front of a research poster with six others nearby

Cause or Effect? Study Answers Question About Gene Linked With Colorectal Cancer

Findings in mice illuminate disease development, could aid treatment efforts

2 min read
Swirls of cells lit up in green, blue, and red

Hearing Research Traces Evolution of Key Inner-Ear Protein

Discovery of how TMC1 evolved to sense sound could guide future therapies for hearing loss

4 min read
Microscope image showing three bundles of hair-like structures

New Insights Into Long-Term Effects of Common Viruses

Analysis shows genetics can influence health effects of viruses that persist in the body

3 min read
Three red, circular objects on a blue background
Harvard Medicine magazineResearch

The Long Game of Microbiome Science

Looking beyond the hype, three experts explain what research on the gut microbiome might actually deliver

8 minute read
Colorful illustrated bacteria in blue, green, yellow, red, and gray, on a dark blue background. The design is playful and abstract.

A Large-Scale Look at the Exposome

Analysis of hundreds of environmental exposures and health outcomes quantifies influence of nongenetic factors

4 min read
pedestrians, cyclists, and vehicles moving down a busy city street

Thymus May Be Critical for Longevity and Cancer Immunotherapy Response

New research also links long-overlooked organ to lower cardiovascular, lung cancer risk

3 min read
Two side-by-side CT scans of the chest, each of which has a small triangular orange outline in the middle indicating the thymus. One is filled with gray while the other is dark.

Tracing the Role of Physicians, Medicine, and Disease in the American Revolution

Medical history article series marks war’s 250th anniversary

3 min read
Photograph of the John Trumbull painting “The Death of General Warren at the Battle of Bunker’s Hill, June 17, 1775” depicts Colonial and British soldiers on a stormy hilltop while Joseph Warren lies mortally wounded in the arms of a comrade.

The Journey To Turn a Lab’s Discovery Into a Heart Failure Treatment

Andrew Kruse and colleagues strive to fulfill the potential of relaxin

5 min read
Illustration of the heart with four colorful outlines