The lower intensity of dietary intervention for the control group during the first few years might have caused a bias toward a benefit in the two Mediterranean-diet groups, since the participants in these two groups received a more intensive intervention during that time.
The embedded speaker system in the Vybe provides crystal clear sound and a control panel to allow for adjustments in the sound volume and intensity of the tactile sensations.
Thereafter, participants assigned to the control diet received personalized advice and were invited to group sessions with the same frequency and intensity as those in the Mediterranean-diet groups, with the use of a separate 9-item dietary screener (Table S3 in the Supplementary Appendix).
Options to look for include adaptive cruise control that can automatically maintain a set speed and interval on the highway, and high-intensity Xenon headlamps with Active Curve Illumination that can help illuminate the road at night through curves.