Berries..Strawberries for that matter!

When I was very young I first saw a first hand farm of strawberries on the mountains. We actually bought
some and enjoyed the juicy fruit while climbing the winding roads. Later in life I've read that these fruit is
very good and is the solution for dizziness when altitudes are very high. No wonder I first saw these on those mountain tops..I wonder if they know why these thrives on such steep mountain sides?