The phrase "as they experience" is correct and usable in written English.
It can be used to describe actions or feelings that occur simultaneously with someone's experiences or perceptions.
Example: "The participants reported feeling more engaged as they experience the interactive elements of the presentation."
Alternatives: "while they undergo" or "as they go through".
"The Army is building data all the time as they experience one episode after another.
Such mechanical strength keeps the cratons from easily breaking up as they experience the tectonic stresses associated with traveling across Earth's surface.
Evidence shows families are being squeezed much more this time than in previous eras, as they experience a toxic combination of falling household incomes and rising inflation.
Even those lucky enough to have the drugs they need are at greater risk of relapse as they experience crowded living conditions.
You can, if you are so inclined (I was), watch a variety of men wince and writhe and whimper as they experience a birth simulation.
Simply reading about an online romance can be pretty boring, but Reed solves this problem by sharing the participants' perceptions of romance as they experience them.
"We find that if students come with a clear idea, they often change their minds as they experience new areas of medicine".
All that is left is noises off – the odd newspaper editorial or column and civil society and business beginning to stir as they experience the impact.
Now they're doing it again as they experience something they may never have been through – the death of a human being they feel close to.
The eagerness of high-speed firms to enter Brazil points to their search for new markets as they experience difficulties in sustaining their profits in the highly competitive United States.
The remaining zones are more affected by peak congestion as they experience greater reductions in accessibility.
