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Biological Rhythms

Among them, the circadian rhythms (from the Latin circa, "around" and diem, "a day") which represent every variation over a period of about 24h (following the light/dark cycle caused by the rotation of the Earth) . All our organism's functions (body temperature, digestion, hormonal secretion, ...) are controlled by these rhythms, therefore it is essential to be aware of your own internal clock and to know how to listen to it.


Sleep is one of these rhythms, which is why it is very important that sleep is present in sufficient quantity and adapted to your individual needs. Today more than ever before, people either don’t get enough sleep or have irregular and unstable sleep timing due to professional and social constraints such as night work or international travel. These pressures together chronically disrupt the internal body clock. 

However, disorders of these circadian rhythms can have effects both on our metabolism and our immune and cardiovascular system as well as on our psychic (depression, anxiety, ...).


On the contrary, becoming aware of our biological rhythms, and knowing their operation mode, will allow us to adapt our day according to our own needs, and thus, sleep better, improve our well-being and increase our performance.


But how to do it? To find out more, come and contact me:

Why should we care?


In business


of employees claim to sleep less than 6 hours per night


more likely to be involved in an accident

Tired employees are

1 night less

per week

Night shift workers generally sleep

Life quality 


Sleep problems

daily fatigue

ability to make decisions

Reduced productivity

Risk increase

number of errors, poor decision making

risk of accidents on commutes

Economic loss

stress, anxiety, depression

concentration, memory, attention

general health:

  • Obesity

  • Hypertension

  • Cardiac and vascular pathology

Loss of 2 weeks of productivity per year per employee

  • 100 billion euros lost per year in France

  • 88% of the costs related to insomnia are paid by the employer (about 233 euros per employee per year)

speed of tasks execution

teamwork, employee engagement

innovation mindness, creativity

absenteeism rate, up to 92%


We have the solution

Clock & me is here to help and support you in your process. Thanks to my years of scientific research, and the advice of our experts, I will;

  • Help you understand this great mystery of sleep,

  • Provide your teams with tools to better manage their daily activities in order to optimize productivity at work and reduce errors,

  • Evaluate the sleep of your employees in order to find suitable solutions to reduce their fatigue.

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In schools



students claim to sleep between 6 and 7h a night instead of the recommended 7 to 9h.


of adolescents use social networks, especially before going to bed, causing sleep problems and other mental disorders

Decrease in academic achievement

daily fatigue

the ability to perform concurrent tasks    

in attention

of concentration   

Learning difficulty

Paresseux ado1.png

stress management problems

Life quality 



suicidal thoughts

of their pessimism about their future

We can help you

Clock&me is here to help you and educate students about the functioning of circadian rhythms in order to adopt a better lifestyle.

I am committed to;

  • Helping you understand this great mystery of sleep,

  • Providing teachers and students with tools to manage their daily activities (sports, food timing...) and optimize learning and well-being


1. "Les français en manque de sommeil" (2018) La santé de l'homme N°397 Septembre - Octobre.

2. "The Relationship Between Sleep and Industrial Accidents" National Sleep Foundation.

3. "Le temps de sommeil en France// Sleep Time in France" (2019) Santé Publique france, N° 8-9 | 12 mars.

4. "The sleep-deprived human brain." (2017) Krause AJ et al., Nat Rev Neurosci. 18(7):404-418.

5. "The effects of sleep deprivation on symptoms of psychopathology in healthy adults." (2007) Kahn-Greene ET et al., Sleep Med. 8(3):215-21.

6. "Sleep and depression." (2005) Tsuno N et al., J Clin Psychiatry. 66:1254–69.

7. "Role of sleep and circadian disruption on energy expenditure and in metabolic predisposition to human obesity and metabolic disease." (2017) McHill AW, Wright KP Jr,Obes Rev. 18 Suppl 1:15-24.

8. "The effects of insomnia and sleep loss on cardiovascular disease." (2017) Khan MS, Aouad R., Sleep Med Clin. 12:167–77.

9. "The occupational impact of sleep quality and insomnia symptoms." (2012) Kucharczyk ER et al., Sleep Med Rev. 16(6):547-59.

10. "Insomnia and the performance of US workers: results from the America insomnia survey." (2011)
Kessler RC et al., Sleep, 1;34(9):1161-71.

11. "Why Sleep Matters: Quantifying the Economic Costs of Insufficient Sleep" (2016) Rand Corporation, Rand Europe

12. "The economic cost of inadequate sleep." (2018)
Hillman D et al., Sleep, 1;41(8).

13. "Le manque de sommeil nuit à l’économie." (2018)Louis Bachelier.

14. "Sleep in adolescence: physiology, cognition and mental health." (2016) Tarokh L et al., Neurosci Biobehav Rev, 70: 182–188.

15. "Benefits and Costs of Social Media in Adolescence." (2017)Uhls YT et al., Pediatrics, 140(Suppl 2):S67-S70.

16. "#Sleepyteens: Social media use in adolescence is associated with poor sleep quality, anxiety, depression and low self-esteem." (2016) Woods HC and Scott H, J  Adolesc., 51:41-9. 

17. "Effects of sleep manipulation on cognitive functioning of adolescents: A systematic review." (2017) de Bruin EJ et al., Sleep Med Rev, 32:45-57.

18. "Consequences of inadequate sleep during the college years: Sleep deprivation, grade point average, and college graduation." (2019)
Chen WL and
 Chen JH, Prev Med, 124:23-28.

19. "Insufficient sleep in adolescents: causes and consequences." (2017) Owens JA and Weiss MR, Minerva Pediatr., 69(4):326-336.

20. "Epidemiologic study of sleep quality and troubles in French secondary school adolescents." (1997) Vignau J et al., J Adolesc Health, 21(5):343-50.

21. "Improving sleep, cognitive functioning and academic performance with sleep education at school in children." (2020) Rey AE et al., Learning and Instruction, Volume 65.

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