Water is life and technically it is our body’s mechanical oil—without it, it we simply can’t function. Surprisingly, you lose about 8 percent of your body water while on a flight. This is because the humidity in the climate-controlled environment can be as low as 10 to 15 percent.
Spending a long period of time confined in a reduced oxygen environment with low humidity seriously dehydrates you. ‘Dehydration is a major issue when travelling by airplane,’ Yasmin tells us. ‘The problem arises due to spending long periods of time in a climate-controlled environment where the relative humidity can be as low as 10-15%, which is three times drier than the Sahara desert!’
‘In an average 10 hour flight, men can lose approximately two litres of water and women around 1.6 litres. This means that on a London to Sydney flight a passenger could lose up to 4 litres and 8% of their bodily water.’