why did scandinavians switch to nomadism with reindeer

Reindeer nomadism was a lifestyle adopted by the indigenous people of Scandinavia in order to survive the harsh Arctic conditions. Reindeer are uniquely adapted to the cold, snowy environment and can survive on minimal food and water. The nomadic lifestyle also allowed the people to move from place to place in search of better grazing grounds for their reindeer herds. Reindeer nomadism was a way of life for many centuries, but today it is practiced mainly for cultural and traditional reasons.