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Health & Medicine

The body, disease, treatment and public health

Illustration of a glucometer used to monitor blood glucose levels

Insulin resistance

Insulin resistance is a condition in which the body’s cells, particularly in muscle, fat, and liver tissue, respond less effectively to insulin, the hormone responsible for moving glucose out of the bloodstream and into cells for energy use or storage. As cells become less responsive, the pancreas compensates by producing increasing amounts of insulin to

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A condition in which cells respond less effectively to insulin, forcing the pancreas to produce more.

A clock radio, representing the timed eating windows used in intermittent fasting

Intermittent fasting

Intermittent fasting is an eating pattern that cycles between defined periods of eating and periods of voluntary abstention from food, rather than prescribing which specific foods to eat or avoid during the eating periods themselves. It differs from most traditional diets by focusing primarily on when food is consumed rather than what is consumed, and

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An eating pattern that cycles between periods of eating and voluntary food abstention.

Johnson & Johnson headquarters complex on George Street in New Brunswick, New Jersey, seen from a commuter train

Johnson and Johnson

Johnson & Johnson is an American healthcare company, headquartered in New Brunswick, New Jersey, that develops prescription medicines and medical technology. It was founded in 1886 by Robert Wood Johnson and his brothers to mass-produce sterile surgical supplies. In fiscal 2023 it reported worldwide sales of $85.2 billion, and in its 10-K for that year

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Johnson & Johnson is a New Jersey healthcare company founded in 1886 that sells prescription medicines and medical technology, with fiscal 2023 sales of $85.2 billion.

LDL cholesterol

In simple terms Cholesterol is a waxy fat the body needs but cannot dissolve in blood. It travels wrapped inside particles called lipoproteins. LDL stands for low-density lipoprotein. LDL cholesterol is the portion those particles carry, and it is often called bad cholesterol because it is the main source of cholesterol buildup and blockage in

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LDL cholesterol is the share of blood cholesterol carried by low-density lipoproteins, the main source of the buildup that narrows arteries.

Market stall displaying a variety of fresh fruits and vegetables

Macronutrient

A macronutrient is one of the three major categories of nutrients the body needs in relatively large amounts to function, grow, and produce energy: carbohydrates, proteins, and fats. Unlike micronutrients, which are needed only in small amounts, macronutrients are measured in grams per day and together make up the overwhelming majority of the calories a

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One of the three major nutrient categories the body needs in large amounts: carbohydrates, protein, and fat.

A fresh orange, a natural source of vitamin C

Micronutrient deficiency

A micronutrient deficiency occurs when the body does not receive enough of a specific essential vitamin or mineral needed in small amounts to support normal growth, development, and physiological function. Unlike macronutrients, which are needed in large quantities and primarily supply energy, micronutrients are required only in milligram or microgram amounts, but their absence or

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Insufficient intake of a specific essential vitamin or mineral needed for normal bodily function.

A person meditating calmly beside a river

Mindfulness-based therapy

Mindfulness-based therapy is a category of structured psychological treatment that incorporates mindfulness practices, techniques for cultivating present-moment, non-judgmental awareness of thoughts, feelings, and bodily sensations, into a formal therapeutic framework for addressing mental health conditions. Rather than treating mindfulness purely as a general wellness practice, these approaches apply it within a specific clinical structure, often

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A category of structured psychological treatment that incorporates mindfulness practices into a clinical framework.

A Philips MRI scanner with its patient bed in a hospital in Gothenburg, Sweden

MRI technology

Magnetic resonance imaging, or MRI, is a medical imaging technology that uses strong magnetic fields and radio waves to make detailed pictures of the inside of the body. The U.S. Food and Drug Administration describes it as a procedure for imaging internal structures. Unlike X-ray based scans, it builds images from the behavior of atomic

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MRI is an imaging technology that uses strong magnetic fields and radio waves to make detailed pictures of the body's internal structures.

A COVID-19 vaccine vial and a syringe

mRNA vaccine technology

mRNA vaccine technology uses a laboratory-made copy of messenger RNA to instruct a person’s own cells to produce a harmless piece of a germ’s protein, which trains the immune system to recognize that germ. The vaccine contains no live virus, and the cell breaks down the mRNA after it has done its job. The approach

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A vaccine approach that gives cells mRNA instructions to make a harmless piece of a germ's protein and train the immune system.

Bodybuilder flexing muscles on stage at a bodybuilding competition

Muscle hypertrophy

Muscle hypertrophy is the physiological process by which skeletal muscle fibers increase in size, primarily through an increase in the cross-sectional area of individual muscle cells rather than an increase in their number. It is the main adaptation responsible for the visible muscle growth that results from resistance training, and it occurs when the rate

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The process by which skeletal muscle fibers increase in size in response to resistance training.