1/ All you need is love? Scientists Extend Lifespan by over 70% in Elderly Male Mice with New Treatment - oxytocin (the "love-hormone")+ ALK5 inhibitor! "Treatment of old frail male mice with OT+A5i resulted in a remarkable 73% life extension from that time, and a 14% increase in the overall median lifespan." the tl;dr and what it means for us:

2/ Old, frail male mice treated with a combo of oxytocin + ALK5 inhibitor (OT + A5i) showed a ~73 % gain in remaining lifespan from treatment start, with improvements in physical fitness, memory, and resilience, and a 14 % boost in median total lifespan.

3/ So all you need is love? Yes, kind of. Oxytocin = the hormone behind touch, trust, bonding, “love” in chemical form. The researchers boosted it with a small-molecule ALK5 inhibitor, and in old male mice that cocktail kicked cellular repair into higher gear. Females didn’t show the same benefit, likely because estrogen already interacts with oxytocin pathways; their baseline signaling is different. So the biology of “love” seems to depend on who’s feeling it.

4/ In sum: It suggests that targeting social-hormone pathways like oxytocin could become a new lever for extending both lifespan and healthspan, at least in males. More broadly, it hints that emotional and hormonal signaling may be as crucial to longevity as metabolism or genetics.