A cross-border truck driver's life is tough and often unhealthy. Most will grab the tastiest fast food they can and then sit for 12 hours straight, only taking short breaks to stretch or visit the toilet.
Although at risk of developing a range of health problems, few long-haul truck drivers have the time, money or inclination to have regular check-ups.
That was 44-year-old Benson Kong's lifestyle, until an accident last year landed him in the emergency room, where doctors discovered that he had diabetes.
Kong (whose name has been changed for patient confidentiality reasons) saw this as a wake-up call and resolved to treat his body better. He changed his diet and dutifully took his medication to manage his blood sugar. But given his job's demands, regular exercise was still a challenge.
Because Kong had never had a thorough health check, no one knew how long his blood glucose level had been out of control.
Unfortunately, it did not occur to his family doctor, who helped monitor and manage his condition, that the disease might have started damaging his organs.