'Everything feels over-tired' - Graingerpublished at 14:45 Greenwich Mean Time 17 November 2014
Olympic rowing champion Katherine Grainger, back in training after two years away from the sport, spoke to Radio 5 live earlier about how tough it is.
"The most obvious thing is - and I don't know whether it's an age thing or having the break - everything feels over-tired," said Grainger, who will be 40 when the next Olympics take place in Rio.
" I used to be able to do 100 things at once and burn the candle at both ends but now, just training seems to be enough for me in a day.
"It's quite a punishing routine and I think your body just takes time to adjust. Hopefully that will come in the next few weeks."
Grainger won gold with Anna Watkins at London 2012.