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This individual's Resting Heart Rate (Pulse) is generally highest after an average of 24 degrees celsius of Indoor Temperature over the previous 24 hours.
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Blue represents the mean of Indoor Temperature over the previous 24 hours
An increase in 24 hours cumulative Indoor Temperature is usually followed by an increase in Resting Heart Rate (Pulse). (R = 0.75)
Typical values for Resting Heart Rate (Pulse) following a given amount of Indoor Temperature over the previous 24 hours.
Typical Indoor Temperature seen over the previous 24 hours preceding the given Resting Heart Rate (Pulse) value.
This chart shows how your Indoor Temperature changes over time.
Each column represents the number of days this value occurred.
This chart shows the typical value recorded for Indoor Temperature on each day of the week.
This chart shows the typical value recorded for Indoor Temperature for each month of the year.
This chart shows how your Resting Heart Rate (Pulse) changes over time.
Each column represents the number of days this value occurred.
This chart shows the typical value recorded for Resting Heart Rate (Pulse) on each day of the week.
This chart shows the typical value recorded for Resting Heart Rate (Pulse) for each month of the year.

Abstract

This individual's Resting Heart Rate (Pulse) is generally 3% higher than normal after an average of 24 degrees celsius Indoor Temperature over the previous 24 hours. This individual's data suggests with a high degree of confidence (p=8.8942651526648E-62, 95% CI 0.155 to 1.345) that Indoor Temperature has a strongly positive predictive relationship (R=0.75) with Resting Heart Rate (Pulse). The highest quartile of Resting Heart Rate (Pulse) measurements were observed following an average 23.97 degrees celsius Indoor Temperature. The lowest quartile of Resting Heart Rate (Pulse) measurements were observed following an average 20.545217391304 C Indoor Temperature.Resting Heart Rate (Pulse) is generally 4% lower than normal after an average of 20.545217391304 degrees celsius of Indoor Temperature over the previous 24 hours. Resting Heart Rate (Pulse) is generally 3% higher after an average of 23.97 degrees celsius of Indoor Temperature over the previous 24 hours.

Objective

The objective of this study is to determine the nature of the relationship (if any) between Indoor Temperature and Resting Heart Rate. Additionally, we attempt to determine the Indoor Temperature values most likely to produce optimal Resting Heart Rate values.

Participant Instructions

Get Netatmo here and use it to record your Indoor Temperature. Once you have a Netatmo account, you can import your data from the Import Data page. This individual's data will automatically be imported and analyzed.
Get Fitbit here and use it to record your Resting Heart Rate (Pulse). Once you have a Fitbit account, you can import your data from the Import Data page. This individual's data will automatically be imported and analyzed.

Design

This study is based on data donated by one participant. Thus, the study design is consistent with an n=1 observational natural experiment.

Data Analysis

Indoor Temperature Pre-Processing
No minimum allowed measurement value was defined for Indoor Temperature. No maximum allowed measurement value was defined for Indoor Temperature. No missing data filling value was defined for Indoor Temperature so any gaps in data were just not analyzed instead of assuming zero values for those times.
Indoor Temperature Analysis Settings

Resting Heart Rate (Pulse) Pre-Processing
Resting Heart Rate (Pulse) measurement values below 40 beats per minute were assumed erroneous and removed. No maximum allowed measurement value was defined for Resting Heart Rate (Pulse). No missing data filling value was defined for Resting Heart Rate (Pulse) so any gaps in data were just not analyzed instead of assuming zero values for those times.
Resting Heart Rate (Pulse) Analysis Settings

Predictive Analytics
It was assumed that 0 hours would pass before a change in Indoor Temperature would produce an observable change in Resting Heart Rate (Pulse). It was assumed that Indoor Temperature could produce an observable change in Resting Heart Rate (Pulse) for as much as 1 days after the stimulus event.
Predictive Analysis Settings

Data Quantity
260 raw Indoor Temperature measurements with 246 changes spanning 278 days from 2018-04-17 to 2019-01-20 were used in this analysis. 1677 raw Resting Heart Rate (Pulse) measurements with 1155 changes spanning 2199 days from 2013-03-22 to 2019-03-31 were used in this analysis.

Data Sources

Indoor Temperature data was primarily collected using Netatmo. Experience the comfort of a Smart Home: Smart Thermostat, Security Camera with Face Recognition, Weather Station.

Resting Heart Rate (Pulse) data was primarily collected using Fitbit. Fitbit makes activity tracking easy and automatic.

Limitations

As with any human experiment, it was impossible to control for all potentially confounding variables. Correlation does not necessarily imply causation. We can never know for sure if one factor is definitely the cause of an outcome. However, lack of correlation definitely implies the lack of a causal relationship. Hence, we can with great confidence rule out non-existent relationships. For instance, if we discover no relationship between mood and an antidepressant this information is just as or even more valuable than the discovery that there is a relationship.
We can also take advantage of several characteristics of time series data from many subjects to infer the likelihood of a causal relationship if we do find a correlational relationship. The criteria for causation are a group of minimal conditions necessary to provide adequate evidence of a causal relationship between an incidence and a possible consequence.

The list of the criteria is as follows:
Strength (A.K.A. Effect Size)
A small association does not mean that there is not a causal effect, though the larger the association, the more likely that it is causal. There is a strongly positive relationship between Indoor Temperature and Resting Heart Rate (Pulse)

Consistency (A.K.A. Reproducibility)
Consistent findings observed by different persons in different places with different samples strengthens the likelihood of an effect. Furthermore, in accordance with the law of large numbers (LLN), the predictive power and accuracy of these results will continually grow over time. 253 paired data points were used in this analysis. Assuming that the relationship is merely coincidental, as the participant independently modifies their Indoor Temperature values, the observed strength of the relationship will decline until it is below the threshold of significance. To it another way, in the case that we do find a spurious correlation, suggesting that banana intake improves mood for instance, one will likely increase their banana intake. Due to the fact that this correlation is spurious, it is unlikely that you will see a continued and persistent corresponding increase in mood. So over time, the spurious correlation will naturally dissipate.

Specificity
Causation is likely if a very specific population at a specific site and disease with no other likely explanation. The more specific an association between a factor and an effect is, the bigger the probability of a causal relationship.

Temporality
The effect has to occur after the cause (and if there is an expected delay between the cause and expected effect, then the effect must occur after that delay). The confidence in a causal relationship is bolstered by the fact that time-precedence was taken into account in all calculations.

Biological Gradient
Greater exposure should generally lead to greater incidence of the effect. However, in some cases, the mere presence of the factor can trigger the effect. In other cases, an inverse proportion is observed: greater exposure leads to lower incidence.

Plausibility
A plausible bio-chemical mechanism between cause and effect is critical. This is where human brains excel. Based on our responses so far, 1 humans feel that there is a plausible mechanism of action and 0 feel that any relationship observed between Indoor Temperature and Resting Heart Rate (Pulse) is coincidental.

Coherence
Coherence between epidemiological and laboratory findings increases the likelihood of an effect. It will be very enlightening to aggregate this data with the data from other participants with similar genetic, diseasomic, environmentomic, and demographic profiles.

Experiment
All of human life can be considered a natural experiment. Occasionally, it is possible to appeal to experimental evidence.

Analogy
The effect of similar factors may be considered.

Relationship Statistics

Property Value
Cause Variable Name Indoor Temperature
Effect Variable Name Resting Heart Rate (Pulse)
Sinn Predictive Coefficient 0.7494
Confidence Level high
Confidence Interval 0.59494017154515
Forward Pearson Correlation Coefficient 0.75
Critical T Value 1.646
Average Indoor Temperature Over Previous 24 hours Before ABOVE Average Resting Heart Rate ( Pulse) 23.97 degrees celsius
Average Indoor Temperature Over Previous 24 hours Before BELOW Average Resting Heart Rate ( Pulse) 20.545 degrees celsius
Duration of Action 24 hours
Effect Size strongly positive
Number of Paired Measurements 253
Optimal Pearson Product 1.0766908807212
P Value 8.8942651526648E-62
Statistical Significance 0.9992
Strength of Relationship 0.59494017154515
Study Type individual
Analysis Performed At 2019-04-05

Indoor Temperature Statistics

Property Value
Variable Name Indoor Temperature
Aggregation Method MEAN
Analysis Performed At 2019-03-31
Duration of Action 24 hours
Kurtosis 2.4238568282385
Mean 22.387 degrees celsius
Median 22.6 degrees celsius
Number of Changes 246
Number of Correlations 91
Number of Measurements 260
Onset Delay 0 seconds
Standard Deviation 2.3785464197663
Unit Degrees Celsius
Variable ID 6034981
Variance 5.6574830709831

Resting Heart Rate (Pulse) Statistics

Property Value
Variable Name Resting Heart Rate (Pulse)
Aggregation Method MEAN
Analysis Performed At 2019-04-01
Duration of Action 24 hours
Kurtosis 8.661471192817
Mean 81.836 beats per minute
Median 81 beats per minute
Minimum Allowed Value 40 beats per minute
Number of Changes 1155
Number of Correlations 3272
Number of Measurements 1677
Onset Delay 0 seconds
Standard Deviation 6.1178134928466
Unit Beats per Minute
UPC 714169039954
Variable ID 5211891
Variance 37.427641933256

Tracking Indoor Temperature

Get Netatmo here and use it to record your Indoor Temperature. Once you have a Netatmo account, you can import your data from the Import Data page. This individual's data will automatically be imported and analyzed.

Tracking Resting Heart Rate (Pulse)

Get Fitbit here and use it to record your Resting Heart Rate (Pulse). Once you have a Fitbit account, you can import your data from the Import Data page. This individual's data will automatically be imported and analyzed.
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https://lh6.googleusercontent.com/-BHr4hyUWqZU/AAAAAAAAAAI/AAAAAAAIG28/2Lv0en738II/photo.jpg Principal Investigator - Mike Sinn