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aking antihistamines prior

of Copenhagen and published

to a workout can prevent

in the Science Advances

the body getting the

journal, the study also

full benefit of exercise.

found that antihistamines

A new study found

decreased aerobic capacity,

antihistamines reduce

blocked the improvements

normal increases in blood

that exercise has on

flow to the muscles by 35

circulation and the body’s

per cent during exercise.

ability to tolerate glucose.

Conducted by Ghent


Antihistamines can block the benefits of exercise

Antihistamines are a

University and the University

common drug used by hay fever GHENT UNIVERSITY

sufferers and many take some before exercising outdoors. Senior author on the study, sport scientist Professor

Many take antihistamines prior to exercising outdoors

Dr Wim Derave, told HCM:

One cause of the blunted training adaptations is a reduced post-exercise muscle perfusion

“Exercise training induces

transducer of the adaptive

adaptations in key

health-promoting adaptations

exercise training response,

regulatory proteins.

to multiple organ systems,

with broad clinical relevance:

orchestrated by an interplay

aerobic capacity, glycemic

cause of the blunted

between various exercise

control, and vascular function.

training adaptations is a

factors and signalling events. “In the present study, we

Dr Wim Derave

“These detrimental effects of H1/H2 blockade

show that histamine H1/

on functional outcomes

H2 signaling is an essential

were caused by impaired

“One potential functional

substantially reduced postexercise muscle perfusion.” More:

at Imperial College London, which is awaiting peer-review,

suggests the risk of COVID-19 transmission in swimming



study by virologists


Swimming pool water kills COVID virus in 30 seconds

pool water is “incredibly low”. The study looked at the effects of swimming pool

By mixing the virus with swimming pool water, we could show that the virus does not survive

water on SARS-CoV-2, the virus which causes COVID-19, to assess the amount of time and contact needed to inactivate the virus in varying

The study looked at the effects of pool water on SARS-CoV-2

Wendy Barclay

chlorine and pH levels. The research established


Additional testing of

with current guidance for

that 1.5mg per litre of free

different free chlorine and

swimming pool operation.

chlorine, coupled with a

pH ranges confirmed that

The research study was

pH between 7-7.2 reduced

chlorine in swimming pool

undertaken by virologist and

the infectivity of the virus

water was more effective

expert in respiratory viruses,

1,000-fold within 30 seconds.

with a lower pH. This is in line

Professor Wendy Barclay.

Issue 4 2021 ©Cybertrek 2021

“By mixing the virus with swimming pool water, we could show the virus doesn’t survive,” she told HCM. More: