Yes, Ecology Is Hard

SENS is hard , yes , but not too hard to try : a reply to Warner

Elsewhere in this issue, Huber Warner writes a critique of my “Strategies for Engineered Negligible Senescence” (SENS) proposal for the dramatic postponement of age-related functional decline. His commentary advances the debate on SENS to a proper level of measured discourse, something that has been regrettably lacking hitherto, and for this I applaud him. However, his conclusion that SENS is c...

Yes, Galaxy Pattern is Meaningful!

Normal spiral galaxies have exponential disks and logarithmic arms (spirals). They must be interrelated and the relation is suggested to be iso-ratio. Assume you come off the disk center by such route that the ratio of the star density on your left side to the one on your right side is constant. The route (iso-ratio curve) turns out to be logarithmic spiral! Such distribution of iso-ratio densi...

Sex during pregnancy: Yes, Yes, Yes!

Regular readers of this Journal will recall that it was just over a year ago that I was commissioned to explore the issue of ‘Grey Sex’:1 sexuality in the older age group and the challenges that raises for health professionals, not least in leading us to acknowledge that for human beings the sexual impulse does not inevitably fade. Fast forward, and in this Journal issue I want to explore sex a...

"Yes, Virginia, there is a Santa Claus".

Is spirometry essential in diagnosing asthma? Yes.

diagnose because many patients have no signs or symptoms and have a normal lung function between attacks. Impaired lung function during a histamine challenge test is the reference test, but is not acceptable to many patients, especially to children. A history of certain symptoms also has sufficient diagnostic value for the diagnosis of asthma. Both the British and Dutch guidelines allow indicat...