Can friends deleted by Huawei Health be restored?

Inquired in official website, Huawei Health, friends deleted by Huawei Health can be restored, so they can be added again. Huawei Health is a software developed by Huawei Software Technology Co., Ltd., which provides users with professional training courses such as exercise records, slimming and shaping, and combines scientific sleep and health services to make you run faster and farther and become healthier.