An exhausted, overstretched generation of carers, are in need of emotional support themselves, say researchers.
A report from the Office for National Statistics (ONS) says more than a quarter of such "sandwich carers" are suffering from depression or stress.
"Sandwich carers" look after their elderly parents and their children.
There are 1.3 million people in the UK with such multi-generational caring responsibilities, say researchers, with many feeling ignored and undervalued.
The ONS says the numbers in this "sandwich" generation, often in their 40s and 50s, are being increased by a combination of longer life expectancy and women tending to have children later in life.