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'Smart drugs' don't make people better at a problem-solving test

Some students take medicines like methylphenidate, often sold under the brand name Ritalin, to boost their performance before an exam, but research shows these drugs don't improve how well people do in tests

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Methylphenidate, often sold under the brand name Ritalin, can be prescribed to people with ADHD

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Diabetes drug metformin may cut the risk of long covid by 41 per cent

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Do new Alzheimer's drugs signal the end of the condition?

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SARS-CoV-2 could evolve into new variants that may evade existing vaccines

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Inhaled powder that coats airways can block coronavirus infection

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The omicron coronavirus variant binding to a cell's ACE2 receptor

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Drug that targets ACE2 receptors may work against new covid variants

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Our balance naturally declines with age, making serious falls more likely to occur

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A daily dose of aspirin raises the risk of falls among older people

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Packets of drugs in woman's hands

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Drugs that mutate viruses to kill them could make them more dangerous

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A 3D magnetic resonance imaging (MRI) scan of the brain of a 65-year-old after a stroke. The orange coloring represents an area of dead tissue

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Stroke drug improves memory and repairs injured brain tissue in mice

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A coloured scanning electron micrograph of Escherichia coli (E. coli) bacteria on bladder cells in a urine sample from a patient with a urinary tract infection

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Recurring UTIs may be prevented with an antiseptic drug

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Definition

The placebo effect

The placebo effect is a mysterious phenomenon that happens when someone’s medical symptoms are lessened through the power of suggestion and expectation.

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What is the placebo effect?

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Potent new antifungal discovered in the microbiome of marine animals

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Definition

Modafinil

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Dexamethasone

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Definition

Hydroxychloroquine

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