Poor muscle strength predicts increased vulnerability to both physical & psychological health problems and earlier death, in addition to the contribution of poor aerobic, heart-lung fitness.  This is true for both men & women and for all assessed age ranges.  Mechanisms underlying these effects are probably multifactorial, including metabolic/biochemical, neurological & psychological factors.  Research studies have assessed overall muscular strength in a variety of ways including grip strength, push-ups, chair-stands, and squat weight-lifts.  Happily, muscle strengthening interventions can yield major benefits across multiple health domains.  Here are a dozen interesting papers addressing these areas published in the last few years:

“ Concerning all acts of initiative (and creation) there is one elementary truth, the ignorance of which kills countless ideas and splendid plans - that the moment one definitely commits oneself, then providence moves too ... Whatever you can do, or dream you can, begin it. Boldness has genius, magic and power in it. Begin it now! ” - Goethe

   Social networks: social identity & the importance of both formal & informal groups (what can we do?)

key points: 

the social identity model highlights the value of group membership (more & less formal) for both psychological & physical wellbeing - are there groups you would like to join (or initiate) and are there helpful ways you can increase the sense of the importance to you of some of the groups you're a member of (for example by increasing your involvement with them).

I recently wrote a blog post "Social relationships, group memberships and health: background", where I described some of the mental & physical health benefits of group membership.  I mentioned too the recent research study "Greater number of group identifications is associated with healthier behaviour" where the authors write:"What is already known on this subject? Researchers from a number of disciplines – especially social epidemiologists – have investigated the link between social ties and health behaviour in the past. These researchers have shown that, overall, greater ties predict healthier behaviour.

We know that relationships are important for wellbeing, for protection against & treatment of psychological disorders, and for improving mortality - see, for example, blog posts on this website such as "Strong relationships improve survival as much as quitting smoking", "Be the change you want to see in the world" & "Friendship: science, art & gratitude".

Here are some articles - mostly published in May - that I found particularly interesting: