Various telehealth tools such as emails, phone calls, and video conferencing can be used to connect patients with nurses and doctors to treat disorders remotely. Telehealth apps save time for both patients and healthcare workers, and can be useful for emergency cases and treatment of chronic conditions. During the COVID-19 pandemic, telemedicine has become especially important for safely treating patients and preventing the spread of the virus. Studies have found telehealth reduces mortality rates and increases patient satisfaction during public health crises.