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Published figures on mental wellbeing, attention, sleep and neurofeedback research, each linked to its original source. A separate section shows what we measured in our own offices. New data every quarter, every change logged at the bottom of the page.
I’m François Altwies. Since 2014 my team has recorded more than 3,500 brain maps in Luxembourg — and yes, I make my living from neurofeedback. That is exactly why this page shows every result: the strong ones, the weak ones and the null ones, each with its study design and a link. Good evidence has nothing to hide, and weak evidence deserves to be seen. A meta-analysis tells you what happened on average in the studies it pooled. Your brain is not an average — that is why we measure first.
Mental wellbeing of adults and at work in Luxembourg
36%
Quality of Work Index 2025 (n = 3,171). The 2024 value is lower because the order of the questionnaire changed that year; CSL advises against comparing with 2024.
Source: Chambre des salariés (CSL), University of Luxembourg, infas, CSL summary of results (PDF, FR) (p. 10)
Chambre des salariés (CSL) data.neurofeedback-luxembourg.com/work/
Two survey years shown. CSL advises against using 2024 for burnout because the questionnaire order changed. High depression risk (15% in 2025) is not drawn: CSL states it more than doubled since 2014 but does not publish the 2014 value as a number.
| 2014 | 2025 | |
|---|---|---|
| Moderate or high burnout risk | 16% | 36% |
| Sleep problems often or (almost) always | 19% | 30.2% |
Chambre des salariés (CSL) data.neurofeedback-luxembourg.com/work/
53.4
Quality of Work Index 2025: 53.4 out of 100. Representative sample of 3,171 employees and civil servants aged 16–64 working at least 10 hours a week, drawn from social-security records and including cross-border workers. Interviews from 20 May to 29 August 2025.
Source: Chambre des salariés (CSL), University of Luxembourg, infas, CSL summary of results (PDF, FR); infas for the Chambre des salariés, infas full report (PDF, FR), Annex A.2 (summary p. 2 and p. 4; infas report p. 115)
Chambre des salariés (CSL) data.neurofeedback-luxembourg.com/work/
30.2%
Quality of Work Index 2025 (n = 3,171): share answering “often” or “(almost) all the time” to sleep problems. Self-reported.
Source: Chambre des salariés (CSL), University of Luxembourg, infas, CSL summary of results (PDF, FR) (p. 9)
Chambre des salariés (CSL) data.neurofeedback-luxembourg.com/work/
15%
Quality of Work Index 2025 (n = 3,171). A screening risk score, not a diagnosis. CSL states that the 2025 level is more than double 2014 but does not publish the 2014 value as a number.
Source: Chambre des salariés (CSL), University of Luxembourg, infas, CSL summary of results (PDF, FR) (p. 10)
Chambre des salariés (CSL) data.neurofeedback-luxembourg.com/work/
43%
Gallup State of the Global Workplace 2026. The Luxembourg figure is a three-year rolling average ending in 2025 (Gallup World Poll).
Source: Gallup, gallup.com — Luxembourg country data (Daily stress table)
10.0%
European Health Interview Survey, wave 2019: depression reported for the 12 months before the interview. Self-reported, not a diagnosis confirmed by a clinician.
Source: Eurostat, Eurostat data (direct query) (dataset hlth_ehis_cd1e, DPR_CHR, LU, 2019)
7.7 h
ORISCAV-LUX-2 health survey, January 2016 – January 2018: wrist accelerometer worn for six nights by 1,028 participants (± 1.1 h). A device estimate, not a sleep-lab measurement.
Source: Aguayo G.A. et al., Diabetes & Metabolism 48(1):101263, 2022, sciencedirect.com (Table 1)
Aguayo G.A. et al. data.neurofeedback-luxembourg.com/work/
5.1%
European Health Examination Survey in Luxembourg, 2013–2015 (1,170 respondents with complete data): self-reported usual sleep duration. The paper reports 5.13%.
Source: Ruiz-Castell M. et al., BMJ Open 9(8):e026942, bmjopen.bmj.com (Table 1 (5.13%))
Ruiz-Castell M. et al. data.neurofeedback-luxembourg.com/work/