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Mark Koester

Writer, Product Designer, and Software Engineer

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April 11, 2018

A Matter of Fecal Matter: A 31-Day Scatological Self-Tracking Experiment

Health Poop Tracking Lifelogging Track Everything Health tracking health analytics 30-Day Challenge

March 27, 2018

Know Thy Blood: Common Questions and Answers about Blood and Blood Testing

Health Fitness Blood Testing Biomarker Blood tracking health analytics

March 22, 2018

How to Track Your Money and Finances: Where Your Money Goes is Where It Grows

Finances Money Tracking Track Everything Personal Finances Investing

March 14, 2018

Heart Rate Variability: Science and Advanced Concepts for Understanding a Key Health Indicator

Tracking Quantified Self Personal Data Track Everything Heart Rate Variability Fitness Health Heart Rate Heart Biomarker Science

March 8, 2018

Common Sense Money Management: What are Your First Principles of Personal Finance?

Finances Money Personal Finances Investing

March 1, 2018

An Experiment in Mood Tracking: How I Tracked My Mood and What I Learned

Tracking Quantified Self Track Everything Mood Mood Tracking

February 27, 2018

How to Track Your Workouts: Become Data-Driven in Your Physical Fitness, Health and Performance

Tracking Quantified Self Personal Data Track Everything Workouts Fitness Health

February 22, 2018

Biomarkers: What are they? Why they matter? And how to use them to improve our health?

Health Fitness Blood Testing Biomarker Blood tracking health analytics

February 21, 2018

Biomarkers: Complete List of Most Common Biomarkers and Blood Tests (and some lessons learned)

Health Fitness Blood Testing Biomarker Blood tracking health analytics

February 14, 2018

How to Track Your Mobility: Training for Performance and Injury Prevention

Tracking Quantified Self Track Everything Tracking Tools Running Mobility Injury

February 6, 2018

A Day in a Life Well-Tracked: A Quantified Self Narrative

Tracking Quantified Self Track Everything Tracking Tools

January 31, 2018

Mood Tracking Apps on iOS: A Review of Apps for Logging Your Emotional Life

Tracking Quantified Self Track Everything Mood Mood Tracking Apple Watch App Reviews

January 18, 2018

What Do Your Photos Say about You? Exploring Your Photo Metadata with PhotoStats App

Tracking Quantified Self Track Everything Photo Tracking Photos Metadata PhotoStats.io

January 17, 2018

An Exploration of Mood Tracking: Can We Measure How We Feel?

Tracking Quantified Self Track Everything Mood Mood Tracking

January 5, 2018

2017 My Annual Review

Tracking Goals Personal Development Track Everything App Development Annual Review

January 3, 2018

A Year in Numbers: My Data from 2017

2017 was a year of self-tracking and personal data. So inspired by all the data I collected and some new found abilities in data visualizations, here is my year in data

Tracking Goals Personal Development Track Everything Health Running Media Tracking Data Visualization Year-in-Review Year-in-Data

December 29, 2017

My Year in Book Reading: 2017

Tracking Track Everything Data Visualization Year-in-Review Books Reading Book Review

December 12, 2017

A Year in Self-Tracking: Q4 2017 Update

2017 has been my year of tracking and personal data exploration. For the past year I’ve been meticulously tracking about 20 data points. Not only have I been tracking but I’ve been “optimizing” my life too.

Tracking Self-Tracking Quantified Self Personal Data Track Everything Productivity Mood Tracking Health Data Biomarkers

December 11, 2017

Data-Driven Run Training with TrainAsOne: Observations from a Tracking Guy Who Runs

Tracking Self-Tracking Running Fitness Track Everything Machine Learning Run Tracking Performance Training

December 7, 2017

Journaling for Self-Trackers and Quantified Self Enthusiasts

Tracking Self-Tracking Writing Track Everything Natural Language Processing Data Analysis Productivity Mood Tracking Journaling

Newer Posts Page 5 of 17 Older Posts

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