Chairman's Opening Remarks 3 



specific? Is senile osteoporosis, so common in elderly women, 

 merely a manifestation of osteomalacia in a particular 

 age group, or is it a specific degenerative change? It is 

 interesting that elastic tissue so a})undantly laid down in 

 youth seems to cease to be laid down, or only sparingly so, 

 in old age, its place being taken by collagen. We have to 

 decide on the relationship of these problems to the whole 

 problem of ageing; the riddle is interminable, and possibly our 

 own approach is coloured. I hope in our discussions we shall 

 keep this in mind, and that we shall leave this colloquium 

 invigorated and refreshed. 



The programme also refers to aspects of nutrition, and you 

 will notice that because of the question of bias we have not 

 neglected to include the psychiatric and psychological aspects 

 of the subject. Here the field is less well-defined, and Professor 

 Aubrey Lewds and Professor Sir Frederic Bartlett might say 

 we are all highly biased and therefore truth is very difficult to 

 come by. 



