Why is Zverev allowed to use a phone during his matches?

Alexander Zverev, a Wimbledon finalist, revealed that he uses a mobile phone during his matches to keep track of his blood glucose levels due to his Type 1 Diabetes. This move has sparked discussions about the intersection of health and sports regulations, highlighting the importance of accommodating athletes' medical needs. It shows a growing understanding within sports to support players' health while maintaining competitive integrity. For Zverev, this approach not only ensures his well-being but also sets a precedent for other athletes with similar conditions.