Association Between Exercise Capacity and Late Onset of Dementia, Alzheimer Disease, and Cognitive Impairment – Mayo Clinic Proceedings

Each 1–metabolic equivalent increase in exercise capacity conferred a nearly 8% reduction in the incidence of cognitive impairment.

Conclusion

Exercise capacity is strongly associated with cognitive function; the inverse association between fitness and cognitive impairment provides an additional impetus for health care providers to promote physical activity.

Source: Association Between Exercise Capacity and Late Onset of Dementia, Alzheimer Disease, and Cognitive Impairment – Mayo Clinic Proceedings

Incidence and risk of heart failure in SLE– Kim et al. 103 (3): 227 — Heart

Conclusions –  The findings of this study suggest that patients with SLE have significantly higher risk of developing HF and a worse cardiovascular risk profile compared with the general population. These results need to be confirmed by prospective studies.

Source: Incidence and risk of heart failure in systemic lupus erythematosus — Kim et al. 103 (3): 227 — Heart

These Simple Laws Explain How the World Works

One of life’s small hassles is getting ketchup out of the bottle. What does physics tell us about it—and why doesn’t banging the bottom of the bottle help?

It’s a great disappointment to me that ketchup bottles are now made out of plastic rather than glass because now you can squeeze them and you don’t get to appreciate this nice bit of physics. We’ve all been in a pub or a diner, where you have a glass bottle of ketchup. You turn it upside-down, shake it, hit the bottom, and the ketchup doesn’t come out. Then it all comes out at once! [Laughs]

That’s not random. It happens because ketchup has got this weird property known as shear thinning. What that means is, it’s really viscous until you force it to move a little bit. When you’re shaking the bottle, the ketchup can’t go anywhere, so it stays thick. Once you hit it hard enough that it has to go somewhere, then it becomes runny, so a whole load of ketchup comes out at once.

Source: These Simple Laws Explain How the World Works

The 6-Minute-Walk Distance Test as a Chronic Obstructive Pulmonary Disease Stratification Tool. Insights from the COPD Biomarker Qualification Consortium: American Journal of Respiratory and Critical Care Medicine: Vol 194, No 12

Source: The 6-Minute-Walk Distance Test as a Chronic Obstructive Pulmonary Disease Stratification Tool. Insights from the COPD Biomarker Qualification Consortium: American Journal of Respiratory and Critical Care Medicine: Vol 194, No 12