Health Claims

This book is the first to tell the full story of how Russia’s medicine industry rebuilt itself after the Soviet Union fell, showing how it went from chaos to a new market system.

Descriptive

After the Soviet Union fell apart, Russia ran out of many medicines, so people and businesses started making up their own ways to get drugs—like trading or buying on the black market. The authors say these unofficial systems, not just government rules, helped shape how medicine was sold and distributed in the 1990s.

Descriptive

Taking a daily vitamin pill every day for two years won’t make your memory, focus, or ability to plan things any better if you’re 60 or older.

Descriptive

Taking a daily multivitamin for two years might help older adults remember things like names or where they put their keys a little better — but the improvement is very small.

Causal

Taking a daily vitamin and mineral pill for two years might help older adults think a little sharper—like their brain is two years younger than it would’ve been without the pills.

Causal

When mice don’t get enough lithium, their brain cells change their gene activity in ways that look a lot like the changes seen in human brains with Alzheimer’s—suggesting lithium might play a similar role in both species.

Correlational

A special form of lithium called lithium orotate may help the brain clear out harmful proteins linked to Alzheimer’s, fix memory problems, and reduce brain inflammation in mice—without using high, potentially toxic doses.

Mechanistic

When mice don’t get enough lithium, a brain enzyme called GSK3β goes into overdrive and causes damage linked to Alzheimer’s—like sticky protein clumps and broken brain connections—but giving them a drug that blocks this enzyme fixes those problems.

Mechanistic

When mice don’t get enough lithium in their food, their brains lose about half their lithium, and this causes brain changes that look a lot like Alzheimer’s disease—like sticky protein clumps, damaged nerve connections, and memory problems.

Causal

In people with early memory problems or Alzheimer’s, clumps of a protein called amyloid-beta act like sponges that soak up lithium—a mineral that might help protect brain cells—leaving less lithium where it’s needed, which could make brain damage worse.

Mechanistic

People with early memory problems or Alzheimer’s tend to have less of a natural mineral called lithium in a part of their brain that helps with memory, and the less lithium they have, the worse their memory gets—so measuring lithium might help catch brain decline early.

Correlational

This vaccine uses a special booster ingredient called AS01B to help older people’s weakened immune systems still recognize and fight the shingles virus really well, no matter how old they are.

Mechanistic

The shingles vaccine called HZ/su doesn’t make you more likely to have serious health problems, autoimmune issues, or die compared to getting a fake shot — even after tracking people for over three years.

Causal

The shingles vaccine can make your arm sore and give you muscle aches or fatigue for a day or two, and lots of people feel this — but it’s not serious and almost no one quits the study because of it.

Quantitative

There’s a new shingles shot called HZ/su that works almost just as well for everyone over 50—whether they’re 50 or 80—while the old one, Zostavax, gets much less effective the older you are.

Quantitative

If you're 50 or older and your immune system is healthy, getting two shots of this special shingles vaccine, two months apart, cuts your chance of getting shingles by almost all the way down—like going from a 10% risk to less than 0.3%.

Causal

People who got the shingles vaccine didn’t have more or fewer other health problems than those just barely eligible for it—and since those groups were otherwise similar, it looks like the vaccine might help lower dementia risk, not just luck or other health habits.

Correlational

Getting the shingles vaccine might help lower your risk of developing different kinds of dementia, especially a mix of Alzheimer’s and blood vessel problems in the brain.

Correlational

Getting the shingles vaccine might help women’s brains stay sharper and lower their risk of dying from dementia, but it doesn’t seem to help men’s brains in the same way.

Correlational

People with dementia who get the shingles vaccine may live longer than those who don’t, but the vaccine doesn’t seem to help people without dementia live longer—so maybe it’s helping slow down dementia itself.

Correlational

People with dementia who got the shingles vaccine were nearly 30% less likely to die from dementia over nine years—maybe the vaccine helps slow down how fast dementia gets worse, even in advanced stages.

Correlational

Getting the shingles vaccine might help older adults (79–80 years old) stay mentally sharper longer—studies show they were 3.1% less likely to be diagnosed with mild memory problems over nine years.

Correlational

Getting the shingles vaccine can lower your chances of getting shingles by about 2.3 out of every 100 people over seven years — and this matches what earlier big studies found, so the method used in this study seems reliable.

Quantitative

Getting the shingles shot might help lower your chances of getting dementia later in life—and this link shows up no matter how scientists check the data, so it’s probably real and not just a fluke.

Correlational