Slow loading pages increases users' blood pressure: Study
Other reasons for major increase include pop-up ads, auto-play music and broken pages
Dec 09, 2020 03:43:00 AM | Article | Campaign India Team Share - 
According to a study by UX agency Cyber Duck, slow loading pages cause website users the most stress and see a 21% increase in their blood pressure. Average blood pressure levels jumped from 111 mm Hg to 134 mm Hg. This led to an increase of 21% in blood pressure levels.
The average page load times of the websites used in the study were between 8.8-10.5 seconds and participants used words such as ‘frustrating’ and ‘excruciating’ to describe the page load speeds. Participants felt anything above five seconds for a page load time is ‘inconvenient’ and ‘unacceptable’.
In second place come multiple pop-ups. They caused participants’ blood pressures to rise from 108 mm Hg to 130 mm Hg. The pop-ups participants saw during the experiment included newsletter subscriptions, discount codes, sale awareness and trial offer pop-ups. Participants stated that the use of multiple pop-ups was ‘annoying’ and ‘unnecessary’.
In third place on this list is 'auto-play music' as participants’ blood pressure elevated by an average of 20%, from 106 mm Hg to 127 mm Hg. Users thought the unwelcome blaring of auto-play music on the websites was ‘infuriating’ and ‘disruptive’.
In comparison, auto-play videos fared better in fifth place as participants’ blood pressure surged from 104 mm Hg to 121 mm Hg, a 16% increase. Even though users found auto-play videos ‘distracting’, they said it was easier for them to spot and turn off the source of the sound compared to auto-play music.
Website issues causing the most stress |
Rank | Website Issue | Average Blood Pressure (mm Hg) Before Dealing with Website Issue | Average Blood Pressure (mm Hg) After Dealing with Website Issue | % Change (from Before to After) |
1. | Slow loading pages | 111 | 134 | 21% |
2. | Multiple pop-ups | 108 | 130 | 20% |
3. | Auto-play music | 106 | 127 | 20% |
4. | Broken pages (i.e. 404 Error) | 107 | 125 | 17% |
5. | Auto-play videos | 104 | 121 | 16% |
6. | Non-clickable call-to-action buttons | 105 | 120 | 14% |
7. | Hard to read fonts | 104 | 118 | 13% |
8. | Images not loading | 101 | 113 | 12% |
9. | Multiple image sliders | 99 | 109 | 10% |
10. | Disorienting animations | 102 | 107 | 5% |
110 participants were assigned for each website issue category. Systolic (mm Hg) blood pressure readings used for study.The age range of participants in the study was between 20 – 58 years and none of the participants had any illnesses/health conditions before taking part in the study. None of the participants in the study had a working and/or educational background in information systems (IT), technology or web development/design. All included participants stated they were ‘very confident’ or ‘confident’ users of the internet prior to the study. |