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Light at night

Exposure

1 paper4 findings

C, W, M, H: cells, worms or flies, mice, humans. Dark: independent labs found the same change there. Light: one lab or one study. Outline: nothing yet.

  • 1 lab in 1 country
  • Animals1

Outcomes

4

Food consumption

downin mice1

1 study

  1. Light at night decreases food consumption in mice.

    “Exposure to the LL regimen decreased food consumption but did not influence body weight”

    Animals2,500 Lux24 hr a dayfemalesn = 50

    Effect of exposure to light-at-night on life span and spontaneous carcinogenesis in female CBA mice

    International journal of cancer10 Sep 2004

Estrous function disturbances

upin mice1

1 study

  1. Light at night increases estrous function disturbances in mice.

    “Exposure to the LL regimen decreased food consumption but did not influence body weight, significantly accelerated age-related disturbances in estrous function”

    Animals2,500 Lux24 hr a dayfemalesn = 50

    Effect of exposure to light-at-night on life span and spontaneous carcinogenesis in female CBA mice

    International journal of cancer10 Sep 2004

Tumor incidence

upin mice1

1 study

  1. Light at night increases tumor incidence in mice (p < 0.001).

    “Tumor incidence as well as the number of total or malignant tumors was significantly increased in the LL group compared to the LD group (p < 0.001).”

    Animals2,500 Lux24 hr a dayfemalesn = 50

    Effect of exposure to light-at-night on life span and spontaneous carcinogenesis in female CBA mice

    International journal of cancer10 Sep 2004

Lifespan

downin mice1

1 study

  1. Light at night shortens lifespan in mice.

    “Mice from the LL groups had shorter life spans then those from the LD group.”

    Animals2,500 Lux24 hr a dayfemalesn = 50

    Effect of exposure to light-at-night on life span and spontaneous carcinogenesis in female CBA mice

    International journal of cancer10 Sep 2004

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