Tokyo 2020 officials have unveiled measures to beat the heat during the Olympics scheduled in July next year.

The measures include Mist sprays, cooling scarves and pots of morning glory flowers.

Doctors have warned the Games could see deadly medical emergencies as athletes, volunteers and spectators face the sweltering Tokyo summer where the mercury can easily reach 40 degrees Celsius.

Organisers plan to create shaded spaces, rest areas if people fall ill, cooling fans and misting stations to combat the heat.

Schedules of sports such as the marathon, rugby sevens, triathlon and mountain biking have been brought forward to avoid the worst of the potentially blistering temperatures for the Games.